UPSC PRELIMS · GEOGRAPHY · CLIMATOLOGY
Consider the following statements regarding water vapour in the atmosphere: 1. The amount of water vapour decreases with altitude. 2. The percentage of water vapour is maximum at the poles. Which one of the following is correct?
Take a breath. Choose one. Press A–D on your keyboard if you like.
EXPLANATION
Water vapour is concentrated in the lower atmosphere and decreases rapidly with altitude. Its proportion is generally higher in warm tropical regions than at the cold poles, so only Statement 1 is correct.
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