With reference to "water vapour", which of the following statements is/are correct? 1. It is a gas, the amount of which decreases with altitude. 2. Its percentage is maximum at the poles.

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Q: 58 (IAS/2024)
With reference to "water vapour", which of the following statements is/are correct?
1. It is a gas, the amount of which decreases with altitude.
2. Its percentage is maximum at the poles.

question_subject: 

Science

question_exam: 

IAS

Water vapour is indeed a gas. Its amount decreases with altitude, but it is not maximum at the poles; it is maximum where temperatures are high.