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General Science - Questions and Answers

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226. Existence on moon is not possible because of
A. high pressure
B. low pressure
C. absence of air
D. its weak gravitational power
Explanation:
227. Moon has no atmosphere because
A. it is quite far off.
B. it does not have any living being.
C. its surface is not smooth.
D. root mean square velocity of all gases is more than their escape velocity on moons surface.
Explanation:
228. Microwave links are preferred for telephone because
A. long - distance telephone becomes easier.
B. more telephones can be used.
C. transmission is cheaper.
D. reception is cheaper.
Explanation:
229. What makes a lemon sour ?
A. Tartaric acid
B. Hydrochloric acid
C. Cirtic acid
D. Acetic acid
Explanation:
230. When cream is separted from milk,
A. the density of milk decreases.
B. the density of milk increases.
C. the density of milk remains unchanged.
D. None of these
Explanation:
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