Question

Why are dew drops not formed on a cloudy night?

Answer 1

Answer:

Dew is formed when the air temperature reaches the dew point. In cloudy nights radiation from the ground and vegetation surfaces cannot escape because of the cloud cover. Hence the air temperature remains high. And the moisture will not condense to form dew drops on the grass!

Answer 2

(a) Clouds absorb the radiation released from the Earth’s surface.

(b) Clouds reflect back the Earth’s radiation.

(c) The Earth’s surface would have low temperature on cloudy nights.

(d) Clouds deflect the blowing wind to ground level.