General Science Practice Question and Answer
8 Q: Which of the following is usually not an air - pollutant?
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5f324eeba19eae5979fdd9c6- 1Carbon dioxidefalse
- 2Nitrous oxidetrue
- 3Hydrocarbonsfalse
- 4Sulphur Dioxidefalse
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Answer : 2. "Nitrous oxide "
Q: Pyramid of energy
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5e6b7c0fc34ec57f0d141f2c- 1is always upright.true
- 2is inverted only for sea ecosystem.false
- 3is always inverted.false
- 4can be both inverted or upright.false
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Answer : 1. "is always upright. "
Q: How much carbon does steel contain?
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5dc3c85dee5d9e2ea2b732c4- 10.1% – 1.5%true
- 27 – 10%false
- 310 – 50%false
- 4Zerofalse
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Answer : 1. "0.1% – 1.5%"
Q: Which best describes genetic mutations? 1508 05b5cc68be4d2b4197774c3a1
5b5cc68be4d2b4197774c3a1- 1Genetic mutations that cause diseases are always passed on to offspring.false
- 2Some inherited genetic mutations can be good for the offspring.true
- 3Different genetic mutations cause few forms of cancer.false
- 4Somatic mutations can be inherited from parents or acquired during life.false
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Answer : 2. "Some inherited genetic mutations can be good for the offspring."
Explanation :
Answer: B) Some inherited genetic mutations can be good for the offspring. Explanation: Mutations are accidents in the copying of DNA. A genetic mutation is a random change in the DNA that is passed on further generations of cells and or organisms. Genetic mutations are accidental changes in the DNA in the germ cells or early in the formation of the embryo. These changes if they are in the germ cell will be passed on to other organisms formed by sexual reproduction or asexual reproduction. An example would be the golden delicious apple. A lost of genetic information due to a mutation resulted in a different color of fruit. Genetic mutations that cause diseases are not always passed on to offspring.
Q: Which mission of NASA brought the first human to moon?
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5d775c12315eb75b146390d9- 1Apollo programtrue
- 2Gemini Programfalse
- 3Mercury Programfalse
- 4None of the abovefalse
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Answer : 1. "Apollo program"
Q: What is the study of population called?
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5dc8e2a654f77a2c5d35b48e- 1Map artfalse
- 2Human sciencefalse
- 3Demographytrue
- 4Biographyfalse
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Answer : 3. "Demography"
Q: The hydrogen burning process is directly associated with:
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6023e14de4d6c265698f552f- 1Oxidationtrue
- 2Hydrogenationfalse
- 3Hydrolysisfalse
- 4Reductionfalse
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Answer : 1. "Oxidation"
Q: The fibre of the electric bulb is formed.
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5e37bd0d72f03a106da6b1a4- 1From copperfalse
- 2Aluminiumfalse
- 3From leadfalse
- 4From Tungstontrue
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