Q.

Amount of water vapour in the atmosphere is measured in terms of –

A. Humidity
B. Droplets
C. Smog
D. All of the above
Answer» A. Humidity
Explanation: Humidity is the amount of water vapor in the air. Water vapor is the has phase of water and is invisible. Humidity indicates the likelihood of precipitation, dew, or fog. Higher humidity reduces the effectiveness of sweating in cooling the body by reducing the rate of evaporation of moisture from the skin.
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