1. Acids taste as ___?
<p>Acids typically taste <strong>sour</strong>, which is characteristic of many acidic substances like lemon juice and vinegar.</p>
2. Radiation is ____?
<p><strong>Radiation</strong> can refer to heat produced by the Sun (solar radiation), heat emitted by electronic devices, and heat produced by heaters. All these processes involve the transfer of energy through radiation.</p>
3. _____ process is involved in water heating process?
<p>The process involved in water heating is <strong>convection</strong>, which is the transfer of heat through the movement of fluids (liquids or gases).</p>
<p>In water, heated water rises while cooler water sinks, creating a convection current that distributes heat throughout the liquid.</p>
4. ___ is a poor conductor of heat?
<p>Both water and air are considered poor conductors of heat compared to metals. They can transfer heat, but not as efficiently as good conductors like copper or aluminum.</p>
5. The materials which does not allow heat to pass through them are called ?
<p>Materials that do not allow heat to pass through them are called<strong> insulators</strong>. They resist heat flow and are used to prevent heat transfer in various applications.</p>
6. The materials which allow heat to pass through them are called ?
<p>Materials that allow heat to pass through them are called <strong>conductors</strong>.</p>
<p>They facilitate the transfer of thermal energy efficiently, with metals like copper and aluminum being common examples.</p>
7. Conduction is a ____ process?
<p>Conduction is a temperature transfer process where heat energy is transferred through direct contact between materials, moving from a region of higher temperature to a region of lower temperature.</p>
8. The process by which heat transfers from hot end to cold end of an object is called?
<p>The process by which heat transfers from the hot end to the cold end of an object is called <strong>conduction</strong>.</p>
9. Mercury is very difficult to ____?
<p><strong>Mercury</strong> is very difficult to dispose of safely due to its toxicity and environmental impact.</p>
<p>It requires special handling and disposal procedures to prevent contamination and harm to health and the environment.</p>
10. The maximum and minimum temperature that is measured with in a day is given by ___?
<p>The maximum and minimum temperatures measured within a day are given by a <strong>maximum minimum thermometer.</strong> This device records the highest and lowest temperatures over a specified period.</p>
11. The Thermometer used to measure temperature of other objects other than our body is called as _____?
<p>The thermometer used to measure the temperature of objects other than the human body is called a laboratory thermometer.</p>
<p>It is designed for use in scientific experiments and can measure a wider range of temperatures than a clinical thermometer.</p>
12. Mercury is a ___?
<p><strong>Mercury</strong> is primarily considered a <strong>toxic substance</strong>. While it can be cool or hot depending on its temperature, its toxicity is the most significant characteristic, making it hazardous to health and the environment.</p>
13. The Thermometer that measures temperature of our body is known as ___?
<p>A clinical thermometer is often a mercury thermometer, specifically designed to measure body temperature. Thus, both options a and b are correct.</p>
14. A reliable measure of the hotness of the objects is called as ?
<p>A reliable measure of the hotness of objects is called <strong>temperature</strong>. It quantifies how hot or cold an object is, typically measured in degrees Celsius, Fahrenheit, or Kelvin.</p>
15. Thermometer is used to measure _____?
<p>A thermometer is used to measure temperature. It indicates how hot or cold an object or environment is.</p>
16. Jammu and kashmir has ___ breed of sheep?
<p>Jammu and Kashmir is known for the <strong>Bakharwal breed of sheep</strong>, which is well-adapted to the region's mountainous terrain and is primarily used for wool production and as a source of meat.</p>
17. After scouring of sheep ___ process is done?
<p>After scouring (cleaning) of sheep wool, the sorting process is done. This involves separating the cleaned wool based on its quality, color, and fiber length.</p>
18. The sheared skin with hair is thoroughly washed in tanks to remove grease, this process is called ____?
<p>The process of thoroughly washing the sheared skin with hair in tanks to remove grease is called scouring.</p>
19. The digested food passes into the blood vessels in the wall of the intestine, this process is known as ____?
<p>The process by which digested food passes into the blood vessels in the wall of the intestine is known as absorption.</p>
20. The inner walls of the small intestine have thousands of finger like outgrowths, these are referred as?
<p>The inner walls of the small intestine have thousands of finger-like outgrowths called villi. They increase the surface area for absorption of nutrients.</p>
21. The faecal matter is removed through the anus from time to time, this process is called as?
<p><strong>Egestion</strong> is the biological process by which undigested waste materials, known as faecal matter, are expelled from the body through the anus.</p>
<p>This process is essential for eliminating waste that remains after digestion and absorption of nutrients, ensuring the body's proper functioning and maintaining overall health.</p>
22. ORS stands for
<p><strong>ORS</strong> stands for <strong>Oral Re-hydration Solution</strong>, a fluid replacement therapy used to prevent and treat dehydration, particularly due to diarrhea or vomiting.</p>
23. In grass eating animals, sometimes the food get partially digested, this is called ___?
<p>In grass-eating animals, the process where food gets partially digested is known as rumination, and the partially digested food itself is referred to as cud.</p>
24. The process of chewing partially digested food in grass eating animals is referred as?
<p>The process of chewing partially digested food in grass-eating animals is referred to as rumination.</p>
25. The animals which performs rumination are called _____?
<p>The animals that perform rumination are called <strong>ruminants</strong>. These include species like cows, sheep, and goats, which have a specialized digestive system for breaking down fibrous plant material.</p>
26. The grass is rich in ____?
<p>Grass is rich in cellulose, which is a complex carbohydrate that forms the structural component of plant cell walls. It is an important source of dietary fiber for herbivores.</p>
27. The process by which fleece along with thin layer of skin is removed from the sheep?
<p><strong>Shearing</strong> is the process of removing fleece from sheep, typically done once a year to harvest wool.</p>
<p>It involves cutting the wool fleece along with a thin layer of skin using specialized shearing tools.</p>
<p>This practice is essential for wool production and ensures the sheep's comfort in warmer months.</p>
28. Patanwadi sheep are found in ____?
<p><strong>Patanwadi sheep</strong> are primarily found in <strong>Gujarat</strong>. This breed is known for its good quality wool and adaptability to the arid conditions of the region.</p>
29. Marwari breed of sheep produces ___-?
<p>The Marwari breed of sheep is known for producing good quality wool. This breed is primarily found in the Marwar region of Rajasthan, India.</p>
30. Uttar pradesh state has ____ breed of sheep?
<p>The Rampur Bushair sheep is a breed native to the Rampur and Bushair regions of Uttar Pradesh and Himachal Pradesh in India. It is known for its adaptability to various environmental conditions and is primarily raised for both meat and wool production.</p>
31. Lohi sheep are found in ____ state?
<p><strong>Lohi sheep</strong> are primarily found in <strong>Rajasthan</strong>. This breed is known for its good quality wool and is well adapted to the arid conditions of the region.</p>
32. ____ breed of sheep has good quality of wool?
<p>The Lohi breed of sheep is known for its high-quality wool, ideal for carpet production, averaging 3 kg annually. They are also valued for meat, featuring white bodies with tan, black, or brown foreheads and large, tasseled lop ears. Found in Punjab, Pakistan, and India’s Punjab, Rajasthan, and Haryana.</p>
33. ____ are animal fabrics?
<p><strong>Wool and silk</strong> are considered animal fabrics. Wool comes from sheep, while silk is produced by silkworms. Cotton is a plant-based fabric.</p>
34. Wool is obtained from fleece of ?
<p>Wool is obtained from the fleece of both sheep and yak. While sheep wool is more commonly used, yak wool is also valued for its warmth and softness.</p>
35. In Amoeba food get tracked in ?
<p>In Amoeba, food gets trapped in a structure called the food vacuole, where it is digested.</p>
36. Amoeba has ___?
<p>Amoeba has a nucleus, pseudopodia (false feet), and food vacuoles, which are essential for its movement and feeding processes.</p>
37. Amoeba has ___ structure?
<p>Amoeba has no fixed shape; it is an irregularly shaped organism that can change its form as it moves and feeds.</p>
38. Amoeba is a ____ cellular organism?
<p>Amoeba is a single-celled organism, classified as a unicellular organism.</p>
39. The amount of energy produced on complete combustion of 1 kg of a fuel is known as?
<p>Calorific value refers to the amount of energy released when 1 kg of a fuel undergoes complete combustion. It indicates the efficiency of the fuel in producing heat energy.</p>
<p>A higher calorific value means the fuel releases more energy per unit mass, making it more effective for heating or power generation.</p>
40. The conversion of fertile lands into deserts is called as?
<p>Desertification is the transformation of fertile land into desert, primarily caused by deforestation, overgrazing, drought, and poor agricultural practices, leading to soil degradation and loss of biodiversity.</p>
41. Species of plants and animals found exclusively in a particular area.
<p>Endemic species are plants and animals that exist exclusively in a particular geographic region. They are not naturally found in any other area, making them unique to that location.</p>
42. Organisms made up of more than one cell are called as?
<p>Multicellular organisms are composed of more than one cell, enabling them to perform specialized functions. This complexity allows for diverse structures and systems, essential for survival and adaptation.</p>
43. The change of shape of Amoeba is due to?
<p>The change of shape in Amoeba is due to the formation of pseudopodia, which are temporary projections that help in movement and feeding.</p>
44. The jelly like substance present between the cell membrane and the nucleus is called as?
<p>The jelly-like substance present between the cell membrane and the nucleus is called cytoplasm. It contains various organelles and is essential for cellular processes.</p>
45. The organisms other than bacteria and blue green algae are called?
<p>Organisms other than bacteria and blue-green algae (which are prokaryotes) are classified as eukaryotes. Eukaryotes have complex cells with a nucleus and membrane-bound organelles.</p>
46. The stage of the embryo in which all the body parts can be identified is called as?
<p>The stage of the embryo in which all the body parts can be identified is called a foetus. This stage follows the embryonic stage and marks significant development in structure and function.</p>
47. The reproduction in which an animal reproduces by dividing into two individuals is called as?
<p><strong>Binary fission</strong> is a type of asexual reproduction in which an organism divides into two individuals, each becoming a separate entity.</p>
48. Pituitary gland also produces ____?
<p>The pituitary gland produces various hormones, including the growth hormone, but it does not produce adrenalin or insulin. Adrenalin is produced by the adrenal glands, and insulin is produced by the pancreas.</p>
49. Thyroxin is produced by?
<p><strong>Thyroxin</strong> is produced by the <strong>thyroid gland</strong>. It plays a crucial role in regulating metabolism, growth, and development.</p>
50. Transportation of food in plant through vascular tissue is called as?
<p><strong>Phloem</strong> is the vascular tissue responsible for the transportation of food (specifically, sugars) in plants. Xylem, on the other hand, is responsible for the transport of water and minerals.</p>
51. Hormones are secreted by _____ Glands.
<p>Hormones are secreted by endocrine glands, which release hormones directly into the bloodstream to regulate various bodily functions.</p>
52. Uni sexual flowers ?
<p>All the mentioned plants—papaya, corn, and cucumber—produce unisexual flowers, meaning they have either male or female reproductive structures, but not both in the same flower.</p>
53. At puberty Stage, _____ begins to grow?
<p>At puberty, both the larynx and the voice box begin to grow, leading to changes in voice and other physical characteristics. The larynx is commonly referred to as the voice box.</p>
54. Bisexual flowers?
<p>All the mentioned flowers—rose, petunia, and mustard—are bisexual, meaning they contain both male (stamens) and female (pistil) reproductive structures in the same flower.</p>
55. The reproductive parts in flower ?
<p>The reproductive parts of a flower consist of male stamens and female pistils. Stamens produce pollen, while pistils contain the ovary, which houses the ovules that develop into seeds.</p>
56. The transformation of the larva into an adult through drastic changes is called as?
<p><strong>Metamorphosis</strong> is the biological process where a larva transforms into an adult organism, characterized by profound physical changes.</p>
<p>This process is common in insects, such as the transformation of a caterpillar into a butterfly.</p>
<p>Metamorphosis typically involves stages like egg, larva, pupa, and adult.</p>
57. The animals which lay eggs to give birth are called as?
<p><strong>Oviparous</strong> animals are those that lay eggs, from which the young hatch after development. Viviparous animals, on the other hand, give birth to live young.</p>
58. The animals which give birth to young ones are called as?
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<p>Viviparous animals are those that give birth to live young. This reproductive method contrasts with oviparous animals, which lay eggs. Examples of viviparous animals include mammals like humans and dogs.</p>
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59. Cell wall is absent in?
<p>Cell walls are absent in <strong>animal cells</strong>. They have only a cell membrane, while plant cells have a rigid cell wall.</p>
60. Transportation of water and nutrients in plant through Vascular tissue is called ?
<p><strong>Xylem</strong> is the vascular tissue responsible for the transportation of water and nutrients in plants. Phloem, on the other hand, transports food.</p>
61. Examples of Prokaryotes from the following?
<p>Both bacteria and blue-green algae (cyanobacteria) are examples of prokaryotes, which are single-celled organisms without a nucleus or membrane-bound organelles.</p>
62. The cells having nuclear material without nuclear membrane are termed as ?
<p><strong>Prokaryotic cells</strong> have nuclear material that is not enclosed by a nuclear membrane. Eukaryotic cells, in contrast, have a defined nucleus surrounded by a nuclear membrane.</p>
63. Chromosomes helps in carrying ____?
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<p>Chromosomes are structures within cells that carry <strong>genes</strong>, the hereditary units responsible for traits and characteristics in organisms.</p>
<p>They ensure the proper distribution of genetic material during cell division.</p>
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64. Nucleus contains thread like structures called as?
<p>The nucleus contains thread-like structures known as chromosomes, which are composed of DNA and carry genetic information.</p>
65. Nucleus is separated from the cytoplasm by a membrane called?
<p>The nucleus is separated from the cytoplasm by the nuclear membrane, also known as the nuclear envelope. This membrane regulates the exchange of substances between the nucleus and the cytoplasm.</p>
66. ) The calorific value is expressed in the units of?
<p>Calorific value is commonly expressed in units of kilojoules per kilogram (kJ/kg) when referring to solid and liquid fuels.</p>
<p>For gases, it might also be expressed in kilojoules per cubic meter (kJ/m³).</p>
67. The calorific value of a Coal is?
<p>The calorific value of coal typically ranges from 25,000 to 33,000 kJ/kg, depending on its type and quality.</p>
68. The areas reserved for Conservation of biodiversity are called as?
<p><strong>Biosphere</strong> reserves are areas specifically designated for the conservation of biodiversity, where natural habitats are protected and research on ecological and conservation practices is promoted.</p>
69. A book which keeps record of all endangered animals is called as?
<p>The Red Data Book is a comprehensive record that lists all endangered and threatened species of animals, plants, and fungi. It is maintained to raise awareness and help in the conservation efforts of these species.</p>
70. Organisms made up of single cell are called as?
<p><strong>Unicellular organisms</strong> are made up of a single cell that performs all the functions necessary for the organism's survival.</p>
<p>Examples include bacteria, protozoa, and some algae.</p>
71. ______ among the following is unicellular?
<p><strong>Amoeba</strong> is a unicellular organism, meaning it consists of a single cell that carries out all its life functions.</p>
<p><strong>White blood cells (WBCs)</strong>, although they are single cells, are not considered unicellular organisms because they are part of a multicellular organism (humans or animals).</p>
72. The outer thick layer in cells of plants is called as?
<p>The cell wall is the outer thick layer found in plant cells. It provides structural support and protection and is mainly composed of cellulose. It is not present in animal cells.</p>
73. Each organ is made up of a smaller parts called ____?
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<p>Each organ is made up of smaller parts called tissues. Tissues are groups of similar cells that work together to perform a specific function within the organ.</p>
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74. The largest cell exists in the following?
<p>The ostrich egg is the largest single cell known. It can be up to 15 cm in length and weighs around 1.4 kg, making it much larger than any cell found in humans or lions.</p>
75. The least smallest cell exists in the following?
<p><strong>Bacteria</strong> are generally the smallest cells known. They can be as small as 0.2 micrometers in diameter, making them smaller than cells from algae, fungi, or amoeba.</p>
76. The shape of Amoeba?
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<p>Amoeba has a shapeless, irregular form that can change continuously as it moves and feeds, thanks to its ability to extend and retract pseudopods.</p>
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77. Amoeba is an example of _______ organism?
<p>Amoeba is an example of a unicellular organism, consisting of a single cell that performs all necessary life functions.</p>
78. Robert Hooke observed ____ among the following?
<p>Robert Hooke observed cork cells when he first described cells in 1665. He used a microscope to examine thin slices of cork and noted the small, box-like structures, which he termed "cells."</p>
79. The basic structural unit of an organ is called as?
<p>The basic structural unit of an organ is called a cell. Cells are the fundamental building blocks of all living organisms and make up tissues, which in turn form organs.</p>
80. An ecosystem is made up of?
<p>An ecosystem is made up of plants, animals, microorganisms, and the physical environment in which they interact. All these components work together to form a functioning ecological unit.</p>
81. The Plants observes minerals and water from which part of the plant?
<p>Plants absorb minerals and water primarily through their roots. The root system is designed to take up these essential nutrients from the soil to support the plant's growth and development.</p>
82. Leaves Prepares food during ___________ process using water and carbon dioxide.
<p>Leaves prepare food during the process of photosynthesis using water and carbon dioxide, along with sunlight.</p>
83. Flora and Fauna are referred as _______?
<p>Flora refers to the plant life of a particular region, while fauna refers to the animal life found in that same area.</p>
84. Decrease in water holding capacity of soil is caused by?
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<p><strong>Desertification</strong> refers to the process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture, leading to a decrease in the water-holding capacity of the soil.</p>
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85. Removal of top most layer of soil is called as?
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<p><strong>Soil erosion</strong> refers to the removal of the topmost layer of soil, which is typically the most fertile and nutrient-rich layer. It can occur due to water, wind, or human activities, leading to reduced soil quality and productivity.</p>
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86. Deforestation leads to?
<p>Deforestation leads to changes in soil properties, such as reduced fertility, increased erosion, and changes in moisture retention. While deforestation can affect local rainfall patterns negatively, it does not directly lead to increased rainfall.</p>
87. Droughts are caused by?
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<p>Droughts can be caused by an increase in temperature on Earth, disturbances in the water cycle, and a reduction of rainfall. All these factors contribute to prolonged periods of dry conditions and water scarcity.</p>
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88. Increased concentration of the carbon dioxide in the air will result in?
<p>Increased concentration of carbon dioxide in the air contributes to global warming by enhancing the greenhouse effect, leading to higher global temperatures. While deforestation can increase carbon dioxide levels, the primary direct result of elevated carbon dioxide concentrations is global warming.</p>
89. Chikungunya is caused by
<p>Chikungunya is caused by the chikungunya virus, which is transmitted to humans primarily through the bites of infected mosquitoes, particularly <em>Aedes aegypti</em> and <em>Aedes albopictus</em>.</p>
90. _______ among the following are agricultural practices?
<p>Sowing, preparation of soil, and storage are all important agricultural practices involved in the cultivation and management of crops.</p>
91. Manure is a ____ substance?
<p>Manure is an organic substance made from the decomposed remains of plants and animals. It is used to enrich soil fertility and improve crop growth.</p>
92. A fertilizer is a _____?
<p><strong>Fertilizers</strong> are often inorganic salts that provide essential nutrients to plants to promote growth.</p>
<p>They can also be organic, but the term "fertilizer" typically encompasses both organic and inorganic options. </p>
<p>However, in many contexts, particularly when referring to synthetic fertilizers, they are considered inorganic salts.</p>
93. The crops which are sown in the rainy season are called as?
<p><strong>Kharif crops</strong> are sown in the rainy season, typically from June to September, and are harvested at the end of the monsoon season.</p>
<p>Examples include rice, maize, and cotton.</p>
94. Kharif crops are sown in the period from?
<p>Kharif crops are sown during the rainy season, specifically from June to September, and are typically harvested at the end of the monsoon season.</p>
95. The crops that grown in winter season are called as?
<p><strong>Rabi crops</strong> are grown in the <strong>winter season,</strong> typically sown between October and December and harvested from April to June.</p>
<p>Examples include wheat, barley, and mustard.</p>
96. The substance added to the soil for the healthy growth of plants are called?
<p>Both <strong>manure</strong> and <strong>fertilizers</strong> are substances added to the soil to promote the healthy growth of plants.</p>
<p>Manure is organic, while fertilizers can be either organic or inorganic.</p>
97. ______ is used for removing weeds and for loosening the soil.
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<p>A <strong>hoe</strong> is a simple tool used to remove weeds and loosen soil. It consists of a long handle with a short, broad, curved blade.</p>
<p>Commonly used in gardening and subsistence agriculture, it helps clear soil of old roots. Other soil preparation tools include ploughs, cultivators, and levellers.</p>
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98. _________ is used for tilling the soil.
<p>A plough is primarily used for tilling the soil, while a hoe is more suitable for removing weeds and loosening the surface soil.</p>
99. The process of loosening and turning of the soil is called?
<p><strong>Tilling</strong> and <strong>ploughing</strong> both refer to the process of loosening and turning the soil to prepare it for planting.</p>
100. Manure is obtained from?
<p><strong>Manure</strong> can be obtained from both <strong>plant waste</strong> and <strong>animal wast</strong>e, making it a valuable organic fertilizer for enriching soil.</p>
101. _____is an example of Fertilizers.
<p><strong>Urea, ammonium sulfate, and potash</strong> are all examples of fertilizers used to enhance soil fertility and promote plant growth.</p>
102. Rhizobium is ______?
<p><strong>Rhizobium</strong> is a genus of <strong>bacteria</strong> known for its ability to fix nitrogen in symbiosis with leguminous plants.</p>
103. Fertilizers are very rich in ____?
<p>Fertilizers can be rich in nitrogen, phosphorus, and potassium, which are essential nutrients for plant growth.</p>
104. Manure provides ____ to the soil?
<p>Manure provides humus to the soil, which enhances its fertility and structure, improving water retention and nutrient availability.</p>
105. Chikungunya is spreads by ?
<p>Chikungunya spreads through bites from infected mosquitoes, specifically <strong>Aedes albopictus</strong> and <strong>Aedes aegypti</strong>. These mosquitoes thrive in tropical and subtropical regions, contributing to the virus's transmission.</p>
106. Dengue fever spreads by?
<p>Dengue fever primarily spreads through the bites of infected <strong>Aedes</strong> <strong>mosquitoes</strong>, particularly <strong>Aedes aegypti</strong> and <strong>Aedes albopictus</strong>.</p>
107. Urea is a known as ?
<p><strong>Urea</strong> is known by multiple names, including carbamide, carbonyl diamide, and diaminomethanal.</p>
108. _______ are microscopic in nature.
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<p>Both algae and viruses are microscopic.</p>
<p><strong>Algae</strong> are primarily unicellular or multicellular organisms, often photosynthetic, producing their food using chlorophyll.</p>
<p><strong>Viruses</strong> are tiny infectious agents that require a host to reproduce, ranging from 20 to 400 nanometers in size, and cannot be classified as living organisms.</p>
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109. Diseases like dysentery and malaria are caused by _____?
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<p>Dysentery can be caused by <strong>protozoa</strong> like <strong>Entamoeba histolytica</strong>, and malaria is caused by the protozoan <strong>Plasmodium</strong> species, transmitted by mosquitoes.</p>
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110. In agriculture, micro organisms are used to increase ____ by fixing nitrogen.
<p>Microorganisms, particularly nitrogen-fixing bacteria like <em>Rhizobium</em>, enhance soil fertility by converting atmospheric nitrogen into a form that plants can use, thus improving nutrient availability in the soil.</p>
111. Which micro organisms promotes the formation of curd from milk.
<p><strong>Lactobacillus</strong> is a type of bacterium that specifically promotes the formation of curd from milk by fermenting lactose, the sugar present in milk, into lactic acid.</p>
112. Which micro organism reproduces rapidly and produces carbon dioxide during respiration.
<p><strong>Yeast</strong> is a microorganism that reproduces rapidly through budding and produces carbon dioxide during respiration, which is particularly important in baking and fermentation processes.</p>
113. Yeast is used for commercial production of _____?
<p><strong>Yeast</strong> is used for the commercial production of both <strong>alcohol </strong>and <strong>wine</strong> through the process of fermentation.</p>
114. The process of conversion of sugar into Alcohol is called as _______.
<p><strong>Fermentation</strong> is the process by which sugar is converted into alcohol, typically by yeast.</p>
115. Louis Pasteur discovered ________?
<p>Louis Pasteur is known for his discoveries related to fermentation and the process of pasteurization.</p>
116. Fermentation is discovered in the year of ____.
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<p>Louis Pasteur discovered fermentation in <strong>1857</strong>.</p>
<p>His research demonstrated how yeast converts sugars into alcohol, revolutionizing the understanding of microbial processes in brewing, winemaking, and food preservation.</p>
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117. Edward Jenner discovered the vaccine for _____?
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<p>Edward Jenner discovered the vaccine for <strong>Small pox</strong>. He is known as the pioneer of vaccination, having successfully developed the smallpox vaccine in 1796.</p>
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118. Citrus Canker is a ____?
<p>Citrus Canker is a <strong>Plant Disease</strong>. It is caused by the bacterium <em>Xanthomonas citri</em> and affects citrus plants, leading to lesions on leaves, stems, and fruits.</p>
119. Malaria is caused by _____?
<p>Malaria is caused by <strong>Mosquito</strong>. Specifically, it is transmitted through the bites of infected <strong>female <em>Anopheles</em> mosquitoes</strong>, which carry the <em>Plasmodium</em> parasite responsible for the disease.</p>
120. Hepatitis A is caused by _____?
<p>Hepatitis A is caused by <strong>Virus</strong>. It is specifically caused by the Hepatitis A virus (HAV), which is primarily transmitted through ingestion of contaminated food or water.</p>
121. Causative Micro Organism of Typhoid is _____?
<p>Typhoid is caused by the bacterium <em>Salmonella typhi</em>.</p>
<p>This pathogen spreads through contaminated food and water, leading to symptoms like fever, fatigue, headache, and abdominal pain if untreated.</p>
122. Mode of transmission of the Tuberculosis disease ?
<p><strong>TB</strong> is primarily spread through the air when an infected person coughs, sneezes, or speaks, releasing bacteria into the air that can be inhaled by others.</p>
123. Polio is caused by _____ Micro Organism?
<p>Specifically, it is caused by the poliovirus, which primarily affects the nervous system and can lead to paralysis.</p>
124. Measles is caused by _____?
<p>Specifically, it is caused by the measles virus, which is highly contagious and can lead to serious complications.</p>
125. Diseases which spread from infected persons are called ___?
<p>These diseases can be transmitted from one person to another, often through direct or indirect contact.</p>
126. Pathogens enter our body through______?
<p>Pathogens can enter the body through the skin, mouth, and the air we breathe.</p>
127. Pathogens are ______ micro organisms.
<p>Pathogens are disease-causing microorganisms that include bacteria, viruses, fungi, and protozoa. They can enter the body through various routes, such as skin, mouth, or the air we breathe.</p>
128. Which can be prevented by Vaccination.
<p>Vaccination can help prevent diseases such as Cholera, Tuberculosis (TB), and Smallpox.</p>
129. The medicines which stops the growth of the disease causing micro organisms. Such medicines are called ____?
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<p><strong>Antibiotics</strong> are medicines designed to stop the growth of disease-causing microorganisms.</p>
<p>They are effective against bacterial infections and are commonly used to treat various illnesses and infections in humans.</p>
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130. Polio and Chicken pox are caused by _____
<p>Polio and chickenpox are caused by <strong>Viruses</strong>. Polio is caused by the poliovirus, while chickenpox is caused by the varicella-zoster virus.</p>
131. ______ are the examples of micro organisms.
<p><strong>Bacteria, fungi, and protozoa</strong> are examples of microorganisms.</p>
<p>Bacteria, fungi, and protozoa are all classified as microorganisms due to their microscopic size.</p>
132. The living organisms which we cannot see with our eyes are called?
<p>The living organisms that we cannot see with our eyes are called <strong>micro-organisms or microbes.</strong></p>
133. Animals reared at home or in farms, is called as _____?
<p>Animals reared at home or on farms are referred to as animal husbandry.</p>
134. In the harvested crop, the grain seeds need to be separated from the chaff. This process is called as?
<p>The process of separating the grain seeds from the chaff is indeed called <strong>threshing</strong>.</p>
135. Harvesting is manually done by using?
<p>Harvesting is typically performed manually using a <strong>sickle</strong>, a curved tool designed for cutting crops.</p>
<p>This method allows for efficient gathering of grain, grass, or other agricultural products.</p>
136. Harvesting refers to?
<p>Harvesting refers to the process of cutting and gathering mature crops from the fields. It is a crucial agricultural practice to ensure optimal yield and quality of the produce.</p>
137. Weeds are controlled by using certain chemicals, called _____?
<p>Weeds are unwanted plants that compete with crops for nutrients and water. To control them, specific chemicals known as <strong>weedicides</strong> are used, effectively eliminating these plants and promoting healthier crop growth.</p>
138. The undesirable plants in a agricultural field are called as _____?
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<p><strong>Weeds</strong> are undesirable plants that compete with crops for nutrients, water, and light.</p>
<p>They can hinder crop growth, reduce yield, and impact overall agricultural productivity, making weed management essential in farming.</p>
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139. Objects that emit or give out light on their own are known as?
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<li>Objects that emit or give out light on their own are called <strong>luminous objects</strong>.</li>
<li>They generate visible light independently.</li>
<li>Examples of luminous objects include:
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<li>The Sun</li>
<li>Stars</li>
<li>Fire</li>
<li>Light bulbs</li>
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140. _________ object reflects a beam of light?
<p>Each of these objects—wood, paper, and glass—can reflect a beam of light to some extent. However, the quality of reflection varies:</p>
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<li><strong>Wood</strong> and <strong>paper</strong> generally reflect light diffusely, scattering it in multiple directions.</li>
<li><strong>Glass</strong> can reflect light in a more directed way, especially at certain angles, despite primarily being transparent.</li>
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141. An electric bulb glows only when ?
<p>An electric bulb glows only when an electric current flows through it, heating the filament and causing it to emit light.</p>
142. Objects are materials which does not allow current to pass through them are known as?
<p><strong>Insulators</strong> are materials that do not allow electric current to pass through them, unlike conductors, which allow current to flow easily.</p>
143. The materials which are attracted by the magnet are called as?
<p><strong>Magnetic materials</strong> are those that are attracted by a magnet. Common examples include iron, nickel, and cobalt.</p>
144. Fats,vitamins,proteins and minerals are components of food are necessary for our body are known as
<p><strong>Fats, vitamins, proteins, and minerals</strong> are all components of food that are essential for our body's growth, maintenance, and overall health, and they are collectively known as nutrients.</p>
145. The best conductor of heat from the following options _____?
<p><strong>Mercury</strong> is a good conductor of heat, while ether is not a good conductor. Therefore, mercury is the best conductor of heat among the options provided.</p>
146. Acidic acid is found in _____?
<p>Acetic acid is found in <strong>vinegar</strong>, where it contributes to the sour taste. It's also used in food preservation and as a flavoring agent in various culinary applications.</p>
147. The evaporated water is get back to the ground by _____?
<p>The evaporated water returns to the ground primarily through rain, which is part of the water cycle.</p>
148. Carbon monoxide reacts with oxygen to generate the below?
<p class="MsoNormal">When carbon monoxide reacts with oxygen, it generates <strong>carbon dioxide</strong>.</p>
<p class="MsoNormal">The chemical reaction is represented as <span class="katex-mathml"><strong>2CO+O<sub>2</sub>→2CO<sub>2</sub></strong> </span><span style="mso-spacerun: yes;"> </span>illustrating the formation of carbon dioxide.</p>
149. Water contains ___?
<p class="MsoNormal">Water can contain dissolved air, which includes gases like oxygen and carbon dioxide.</p>
<p class="MsoNormal">However, water itself is primarily composed of hydrogen and oxygen.</p>
150. Carbon monoxide chemical formula?
<p>Carbon monoxide is represented by the chemical formula <strong>CO</strong>, indicating that each molecule consists of one carbon atom bonded to one oxygen atom. It is a colorless, odorless gas.</p>
151. Smoke contain ___?
<p><strong>Smoke is a mixture of various components, including:</strong></p>
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<li><strong>Liquid Particles</strong>: Suspended in the air.</li>
<li><strong>Gases</strong>: Contains <strong>oxygen</strong>, nitrogen, <strong>carbon monoxide</strong>, and carbon dioxide.</li>
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<p><strong>Carbon Monoxide (CO)</strong>:</p>
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<li>A poisonous gas found in tobacco smoke.</li>
<li>Reduces the blood's ability to carry oxygen, causing organs to receive insufficient oxygen.</li>
<li>Forces the heart to work harder to supply oxygen to the body.</li>
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<p><strong>Other Pollutants</strong>:</p>
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<li>May include nitrogen oxides and hydrocarbons, which can be toxic air pollutants.</li>
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152. The major part of air which does not support burning of candle?
<p><strong>Nitrogen</strong> makes up about 78% of the air and does not support combustion, which is why it does not help in burning a candle.</p>
153. Chemical formula for ozone?
<p class="MsoNormal">The chemical formula for ozone is <span class="katex-mathml"><strong>O<sub>3</sub></strong><span class="vlist-s">​</span></span>, indicating that it consists of three oxygen atoms.</p>
154. Water vapour gets added to the air by the process of ?
<p>Water vapor gets added to the air through both <strong>evaporation</strong> (from bodies of water) and <strong>transpiration</strong> (from plants).</p>
155. Collecting rain water and storing it from later use is called as?
<p>Collecting rainwater and storing it for later use is referred to as <strong>rainwater harvesting</strong>.</p>
156. The process of getting back the water which is evaporated is called as?
<p>The process of getting back the water that has evaporated is part of the <strong>water cycle</strong>, which includes evaporation, condensation, and precipitation.</p>
157. _____ percentage of oceans water is estimated throughout the world?
<p>Approximately <strong>96.5%</strong> of the Earth's water is found in oceans, making them the largest reservoirs of water. This vast quantity plays a crucial role in global climate and ecosystems.</p>
158. ______ number of hydrogen molecules are present in water?
<p class="MsoNormal">There are <strong><span style="font-family: 'Calibri','sans-serif'; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 'Times New Roman'; mso-bidi-theme-font: minor-bidi;">two</span></strong> hydrogen molecules in a water molecule, represented by the chemical formula <span class="katex-mathml">H<sub>2</sub>O</span>.</p>
159. Magnetite is a ____ magnet?
<p>Magnetite is a naturally occurring mineral that exhibits magnetic properties, making it a <strong>natural magnet.</strong></p>
160. Formic acid is found in ______?
<p><strong>Formic acid</strong> is primarily found in the sting of ants, particularly in fire ants. While amla contains other acids, it does not contain formic acid.</p>
161. _____ is an example for indicator?
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<p><strong>Litmus</strong> is a common indicator used to determine the acidity or alkalinity of a solution. It changes color when exposed to acids (red) or bases (blue), aiding in pH testing.</p>
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162. Certain type of objects are used to test whether a substance is base or acid,such substance is known as?
<p><strong>Indicators</strong> are substances used to test whether a solution is acidic or basic by changing color in response to pH levels.</p>
163. ______ contain acid?
<p><strong>Lemons </strong>contain citric acid, which gives them their sour taste. Oranges also contain acid, but lemons are more commonly associated with acidity.</p>
164. Wool is obtained from the ______ of sheep or yak ?
<p>Wool is obtained from the <strong>fleece</strong> of sheep or yak. This soft, curly hair is sheared, cleaned, and processed to create various woolen products, valued for warmth and durability.</p>
165. If we cannot see anything through an object, then the object is referred as ______?
<p>If we cannot see anything through an object, it is referred to as <strong>opaque</strong>. Opaque objects do not allow light to pass through them.</p>
166. If we are able to see clearly through an object and it is allowing light to pass through it, then such kind of objects are known as ________?
<p>If we are able to see clearly through an object and it allows light to pass through, such objects are known as <strong>transparent objects</strong>.</p>
167. The objects through which we cannot see objects clearly are known as?
<p><strong>Translucent</strong> objects allow some light to pass through but do not permit us to see objects clearly through them.</p>
168. If we look at the mirror we see our own face, this is due to _______?
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<p>We see our own face in a mirror due to <strong>reflection</strong>. Light rays bounce off the smooth surface of the mirror, allowing us to view our image clearly.</p>
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169. Electricity to the bulb in a torch is provided by the _____ ?
<p>Electricity to the bulb in a torch is provided by an <strong>electric cell</strong>. This cell converts chemical energy into electrical energy, powering the bulb to emit light when activated.</p>
170. The metal cap on electric cell indicates _____?
<p>The <strong>metal cap</strong> on an electric cell is the <strong>positive terminal</strong>, while the <strong>metal disc</strong> is the<strong> negative terminal</strong>.</p>
<p>This configuration facilitates the flow of electric current in circuits.</p>
171. Electricity is produced from Electric cell due to presence of ?
<p>Electricity is produced from an electric cell due to the presence of <strong>Chemicals present in it</strong>.</p>
<p>The chemical reactions between the substances inside the cell generate electrical energy.</p>
172. Electric cell stops working if one of the following occur?
<p>An electric cell stops working if <strong>When the chemicals are used up</strong>.</p>
<p>Once the chemical reactions that generate electricity are exhausted, the cell can no longer produce electric current.</p>
173. The thin wire like object inside the electric bulb which gives light is referred as _____?
<p>The thin wire-like object inside the electric bulb which gives light is referred to as <strong>Filament</strong>.</p>
<p>The filament heats up and produces light when an electric current passes through it.</p>
174. Sometimes the bulb does not glow even though it is connected perfectly, it happens only when the bulb is ______?
<p>Sometimes the bulb does not glow even though it is connected perfectly; it happens only when the bulb is <strong>Fused</strong>.</p>
<p>A fused bulb means that the filament inside has broken, preventing it from functioning.</p>
175. A bulb is fused only when ?
<p>A bulb is fused only when <strong>a) The filament is breaked</strong>.</p>
<p>When the filament inside the bulb breaks, it interrupts the electrical circuit, causing the bulb to stop functioning.</p>
176. No current passes through the filament of an electric bulb when?
<p>No current passes through the filament of an electric bulb when <strong>When the bulb is fused</strong>.</p>
<p>When a bulb is fused, the filament is broken, interrupting the electrical circuit and preventing current from flowing.</p>
177. Materials which allow current to pass through them are called as?
<p>Materials that allow current to pass through them are called <strong>Conductors</strong>. Conductors facilitate the flow of electric current, whereas insulators do not.</p>
178. _______ is a conductor of Electricity?
<p><strong>Iron</strong> is a conductor of electricity. Iron, being a metal, allows electric current to flow through it, unlike plastic, paper, and wood, which are insulators.</p>
179. An Example of Insulator is?
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<p><strong>Wood</strong> is an example of an insulator. It does not conduct electricity, whereas iron and copper are conductors, and the human body can conduct electricity under certain conditions.</p>
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180. An electric bulb has a filament that is connected to?
<p><strong>Terminals</strong>. The filament of an electric bulb is connected to the terminals, which allow the electric current to flow through the filament, enabling the bulb to glow.</p>
181. Switch is used for _______ purpose?
<p>A switch is used to allow current to pass through the circuit, to control the operation of electric components, and to break the circuit when needed.</p>
182. Materials which are not attracted by the magnet are known as?
<p>Materials that are not attracted by magnets are known as<strong> non-magnetic substances</strong>. Examples include wood, plastic, and rubber. These materials do not possess magnetic properties and do not interact with magnets.</p>
183. A rectangular magnet has ___ poles?
<p>A rectangular magnet has <strong>2 Poles</strong>. Magnets have a north pole and a south pole, which are the regions where the magnetic force is strongest.</p>
184. Amoeba digests its food in the _________
<p>Amoeba digests its food in the <strong>food vacuole</strong>. The food vacuole is a membrane-bound sac where digestion takes place within the amoeba's cell.</p>
185. The largest gland in the human body is _______
<p>The largest gland in the human body is the <strong>liver</strong>. It plays a crucial role in metabolism, detoxification, and the production of important proteins and biochemicals necessary for digestion.</p>
186. The ______ is captured by the leafs and stored in the plant in the form of food
<p>The <strong>solar energy</strong> is captured by the leaves and stored in the plant in the form of food through the process of photosynthesis.</p>
187. Organism that cannot produce its own food known as
<p><strong>Heterotrophs</strong> are organisms that cannot produce their own food and rely on consuming other organisms for nutrition.</p>
188. The magnet attracts magnetic objects due to presence of ______?
<p>The magnet attracts magnetic objects due to the magnetic force generated by its magnetic field.</p>