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General Science - Questions and Answers

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56. The evolution of human species took place mainly in
A. Asia
B. Africa
C. Europe
D. China
Explanation:
57. Which of the following groups of animals was the last to appear in the process of evolution ?
A. Arthropod
B. Amphibian
C. Reptile
D. Echinoderm
Explanation:
58. In an atomic explosion, enormous energy is released which is due to the
A. conversion of neutrons into protons
B. conversion of chemical energy into heat energy
C. conversion of mechanical enerty into nuclear energy
D. conversion of mass into energy
Explanation:
59. When an object is placed between two mirrors placed parallel to each other, how many images will be formed ?
A. 2
B. 4
C. 6
D. Infinite
Explanation:
60. The water in an open pond remains cool even in hot summer because
A. of continuous evaporation of water
B. water radiates heat more rapidly than the atmosphere
C. water absorbs heat less rapidly than the atmosphere
D. None of these
Explanation:
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