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Another name of Vitamin C is?
A. Folic acid
B. Ascorbic acid
C. Niacin
D. Acetic acid

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Unit of distance used in navigation is
A. Nautical mile
B. Kilometre
C. Light year
D. Yard

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What type of mirror is used by motorists to see the road behind them ?
A. Convex
B. Concave
C. Plane
D. Concavo-convex

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The escape velocity from the earth’s surface is about
A. 30 km/sec
B. 6 km/sec
C. 11.2 km/sec
D. 300 km/sec

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The chief constituent of gabar gas is
A. Methane
B. Carbon dioxide
C. Acetylene
D. Ethylene

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The radiant energy of the sun is due to
A. Nuclear fission
B. Nuclear fusion
C. Sinking of the sun
D. Violent explosions

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