Science GK Practice Question and Answer
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Q: Which one of the following is an alloy?
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5f9103db9e18f97b703f9c7b- 1Zincfalse
- 2Steeltrue
- 3leadfalse
- 4aluminumfalse
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Answer : 2. "Steel"
Q: Vegetable oils are converted into ghee?
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5f91021d7793eb35d72c61b3- 1Heat treatmentfalse
- 2hydrogenationtrue
- 3oxygenfalse
- 4by enzymesfalse
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Answer : 2. "hydrogenation"
Q: Rust on iron?
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5f9101807793eb35d72c610c- 1ferric oxidefalse
- 2Hydrated ferrous and ferric oxidefalse
- 3Alkali ferrous and ferric carbonatefalse
- 4Because of all of the abovetrue
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Answer : 4. "Because of all of the above"
Q: What substance dissolves in Tears?
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5f90fff5891d2b03f20ebd7e- 1Common salttrue
- 2seafalse
- 3strachfalse
- 4Glucosefalse
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Answer : 1. "Common salt"
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"
Q: What is the following statements is incorrect.
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5f6051cf2e2c892823458623- 1Photochemical haze always contains ozone.false
- 2The toxic effect of carbon monoxide is more attractive to hemoglobin than oxygen.false
- 3Lead is the most dangerous metal pollutant of automobile exhaustfalse
- 4None of thesetrue
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Answer : 4. "None of these"
Q: Which of the following is not a greenhouse gas?
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5f604c192e2c892823456971- 1methanefalse
- 2nitrous oxidefalse
- 3Sulfur Hexa Fluoridefalse
- 4carbon monoxidetrue
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Answer : 4. "carbon monoxide"
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