Basic Science Practice Question and Answer
8 Q: The science that deals with the relationship of various organisms with their environment is known as?
2262 15ee997bfeee45c3b837419d9
5ee997bfeee45c3b837419d9- 1anthropologyfalse
- 2economicsfalse
- 3ecologytrue
- 4geologyfalse
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Answer : 3. "ecology"
Explanation :
Ecology is the study of the relationships between living organisms, including humans and their physical environment. The German scientist Earnst Haeckel was the first to use this word in 1869.
Q: Potato is a modified from of-
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60013d55c3affd2d6985d6e7- 1Rootfalse
- 2Stemtrue
- 3Fruitfalse
- 4Leaffalse
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Answer : 2. "Stem"
Q: Bleaching powder contains ______ bleaching agent.
2257 05f87ed3ce6aa3e1d0bcb7463
5f87ed3ce6aa3e1d0bcb7463- 1Brominefalse
- 2Iodinefalse
- 3Hydrogenfalse
- 4Chlorinetrue
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Answer : 4. "Chlorine "
Q: Metal plate The metal used in the takri?
2176 05ef44d082d6fc772f50b9543
5ef44d082d6fc772f50b9543- 1Copper oxide and coppertrue
- 2Zinc chloride and carbonfalse
- 3Germanium and siliconfalse
- 4None of thesefalse
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Answer : 1. "Copper oxide and copper"
Q: Which vitamin is high in orange?
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5f91312cd6785c0fc0d915c2- 1Dfalse
- 2Afalse
- 3Ctrue
- 4Bfalse
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Answer : 3. "C"
Q: What of the following statements is incorrect?
2113 05f9130e59e18f97b7040f069
5f9130e59e18f97b7040f069- 1Iron sinks in waterfalse
- 2Wood floats on waterfalse
- 3Mercury floats on watertrue
- 4Iron floats in mercuryfalse
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Answer : 3. "Mercury floats on water"
Q: Are fan boxes installed in roofs?
2091 05ef4167fd40ebf3f783329a5
5ef4167fd40ebf3f783329a5- 1Casing-keeping wiringfalse
- 2in cleat wiringfalse
- 3in conduit wiringtrue
- 4Wiringfalse
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Answer : 3. "in conduit wiring"
Explanation :
Most building codes require ceiling fans to be mounted on special fan-rated boxes made of metal or strong plastic with deep-threaded holes for the mounting screws. The box must be mounted firmly by attaching it directly to a framing member or using a fan-rated brace.
Q: Curd contains mainly______acid.
2079 05ee86dea81b3dd0cad84c212
5ee86dea81b3dd0cad84c212- 1Benzoicfalse
- 2Fumaricfalse
- 3Lactictrue
- 4Malicfalse
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