Question

Places on the earth were the night temperature fails below 0° Celsius. Instead of dew, tiny ice crystals are formed in such places. This form of condensation is called :

• A. frost
• B. dew
• C. fog
• D. mist

Answer 1

Answer:

A. frost

Dew

• Blades of grass and leaves early in the morning. This is dew.

• The surface of the earth gets cooled during the night and it cools the near atmosphere. This causes the water vapour to condense and the condensed droplets cling on to the cold surfaces on earth.

• Temperature of atmosphere increases after sunrise. So condensation does not occur there.

• Places on the earth were the night temperature fails below 0° Celsius. Instead of dew, tiny ice crystals are formed in such places. This form of condensation is called frost.