General Science Practice Question and Answer
8 Q: From whom do teeth and bones gain strength and firmness?
2366 05dd2325ec2282c484e4406a3
5dd2325ec2282c484e4406a3- 1Calciumtrue
- 2Fluorinefalse
- 3Chlorinefalse
- 4Sodiumfalse
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Answer : 1. "Calcium"
Q: An element that does not occur in nature but can be produced artificially is
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5df9d3e09e7c624c9bff04d3- 1thoriumfalse
- 2radiumfalse
- 3plutoniumtrue
- 4uraniumfalse
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Answer : 3. "plutonium "
Q: What enzyme occurs in human tears , causing bacteria to die ?
2361 05e5890572ec0ee6eac14fefe
5e5890572ec0ee6eac14fefe- 1Emilesfalse
- 2Uriasfalse
- 3Lysozymetrue
- 4Tylinfalse
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Answer : 3. "Lysozyme "
Q: The term ‘ecosystem’ was proposed by—
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5de48ec3848f4a29cf45ae33- 1Odumfalse
- 2Tansleytrue
- 3Whitkerfalse
- 4Golifalse
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Answer : 2. "Tansley"
Q: Which of the following is caused by the higher concentration of Nitrogen and Phosphorous?
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5dfc9d4340c34473ac86ae3c- 1Eutrophicationtrue
- 2Hardnessfalse
- 3Alkalinityfalse
- 4Acidityfalse
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Answer : 1. "Eutrophication "
Q: Safety fuse wire used in domestic electrical appliances is made of metal of low
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5e2537b3643ee23eb6aea0f3- 1resistancefalse
- 2melting pointtrue
- 3specific gravityfalse
- 4conductancefalse
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Answer : 2. "melting point"
Q: Reflex actions are controlled by 2335 05b5cc69ee4d2b4197774c985
5b5cc69ee4d2b4197774c985- 1the Brainfalse
- 2the Spinal Chordtrue
- 3the Nervesfalse
- 4the Cellsfalse
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Answer : 2. "the Spinal Chord "
Explanation :
Answer: B) The Spinal Chord Explanation: A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This allows for faster reflex actions to occur by activating spinal motor neurons without the delay of routing signals through the brain.
Q: When chlorophyll is burnt which element is obtained?
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5de48f31848f4a29cf45ae3c- 1Cafalse
- 2Nafalse
- 3Mgtrue
- 4Mnfalse
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