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Today General Knowledge(GK)
Clouds usually form when
A)
evapouration has warmed the surrounding air
B)
air temperature reaches the dew point
C)
relative humidity is 0%
D)
condensation nuclei have been removed from the air

Correct Answer : Option (B) - air temperature reaches the dew point



Clouds form when the invisible water vapor in the air condenses into visible water droplets or ice crystals. For this to happen, the parcel of air must be saturated, i.e. unable to hold all the water it contains in vapor form, so it starts to condense into a liquid or solid form.

Published On : July 2, 2021
Category : World Geography
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