Basic Science Practice Question and Answer
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Q: Maximum density of water is-
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5f746665bb26e87e5eea9b4f- 10°Cfalse
- 2100°Cfalse
- 325°Cfalse
- 44°Ctrue
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Answer : 4. "4°C"
Q: The reason for permanent hardness of water is-
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5f746583a921aa16e68bd2df- 1Carbonates of calcium and magnesiumfalse
- 2Bicarbonates of calcium and magnesiumfalse
- 3Chloride and sulfate of calcium and magnesiumtrue
- 4None of the abovefalse
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Answer : 3. "Chloride and sulfate of calcium and magnesium"
Q: Which chemical is used in making artificial rainfall?
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5f745ddda921aa16e68b9ec1- 1Sodium iodidefalse
- 2Silver bromidefalse
- 3Ethylene bromidefalse
- 4Silver iodidetrue
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Answer : 4. "Silver iodide"
Q: Bovidae ovis is the scientific name of __
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5f6c328fb2d86d455070c758- 1sheeptrue
- 2Goatfalse
- 3Cowfalse
- 4Camelfalse
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Answer : 1. "sheep"
Q: Consider the following statements:
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5f6c2f27ec13dd7480fafc03- 1Photosynthesis occurs during day time only.false
- 2Respiration takes place both day and night.false
- 3Neither A nor B are correct.false
- 4Both A and B are correct.true
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Answer : 4. "Both A and B are correct."
Q: The sweet taste of fruits is due to-
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5f61cd4c8561dc09cc7809ba- 1Ribosefalse
- 2Lactosefalse
- 3Fructosetrue
- 4Maltosefalse
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Answer : 3. "Fructose"
Q: What species are found abundantly in ecotone, what is called?
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5f6052b32eed863f3a808024- 1Edge speciestrue
- 2Keystone speciesfalse
- 3Endemic speciesfalse
- 4Foster speciesfalse
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Answer : 1. "Edge species"
Q: Who propounded the term ecology?
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5f60521e09624c19c5c14b7d- 1Charles Darwinfalse
- 2Robert Whitakerfalse
- 3Arthur Tansleyfalse
- 4Ernest Hackletrue
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Answer : 4. "Ernest Hackle"
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