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GS Geography Physical Geography of World
Q.

Air-mass near to the earth’s surface is warmer because it:
Explanation:

ANS. (C) 
The air close to the ground is warmer because the earth’s surface is what heats the atmosphere, for the most part. Terrestrial radiation accounts for much of the warming of air near the Earth’s surface. The further away from the earth’s surface we go, the cooler the atmosphere.

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