Q44. Why are dewdrops not formed on a cloudy night?
(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 temperatures on cloudy nights. (d) Clouds deflect the blowing wind to ground level.
Answer: B
Dew is a type of precipitation where water droplets form on the ground, or on objects near the ground in a process called condensation of moisture. The favorable weather elements for dew include clear skies, light wind, decent soil moisture, and low night-time dew point depressions. Dew forms when the temperature becomes equal to the dew point. This often happens first at ground level for two reasons. Dewdrops are not formed on a cloudy night because clouds reflect back the Earth’s radiation.
