1
Question
Q. Consider the following statements
Which of the statements given above is/are correct?
Q. Consider the following statements
Which of the statements given above is/are correct?Open in App
Solution
The correct option is A
1 only
Explanation:
Statement 1 is correct. Water Vapour absorbs not only the long-wave terrestrial radiation (infrared or heat emitted by earth during nights), but also a part of the incoming solar radiation. It is an important component of the atmosphere. If not for water vapour, the Earth will not receive rain as rain is condensation of water vapour.
Statement 2 is incorrect. Water vapour is also a variable gas in the atmosphere, which decreases with altitude. In the warm and wet tropics, it may account for four per cent of the air by volume, while in the dry and cold areas of desert and polar regions, it may be less than one per cent of the air.
1 only
Explanation:
Statement 1 is correct. Water Vapour absorbs not only the long-wave terrestrial radiation (infrared or heat emitted by earth during nights), but also a part of the incoming solar radiation. It is an important component of the atmosphere. If not for water vapour, the Earth will not receive rain as rain is condensation of water vapour.
Statement 2 is incorrect. Water vapour is also a variable gas in the atmosphere, which decreases with altitude. In the warm and wet tropics, it may account for four per cent of the air by volume, while in the dry and cold areas of desert and polar regions, it may be less than one per cent of the air.
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