Choose the correct word from the brackets and complete the sentence:

(Cumulonimbus, Relative humidity, Absolute humidity, Condensation, Vapour-holding capacity)

(a) The _______ of air is dependent on the temperature of the air.

(b) The amount of vapour in 1 cu.m. of air shows the _______ .

(c) As _______ is less in desert areas, the air is dry there.

(d) _______ type of clouds are indicators of the storm.

(e) In a free environment, the _______ of the vapour present in the atmosphere takes place around dust particles.

(a) Moisture-holding capacity

Explanation: The moisture holding capacity of air is dependent on the temperature of the air. The capacity of the air to hold moisture increases with an increase in the temperature. For example, at 40°C, the moisture holding capacity of the air is 51.12 gm/cu.m.

(b) Absolute humidity

Explanation: Absolute humidity is the amount of water vapour in 1 cu.m of the atmosphere. For instance, near coastal regions, absolute humidity in the air is likely to be higher than near the poles.

(c) Relative humidity

Explanation: Relative humidity is less in desert regions. This is because high temperature reduces the relative humidity of a particular place.

(d) Cumulonimbus

Explanation: Cumulonimbus clouds are indicators of the storm. They are huge and appear dark in colour. They cause rain accompanied by storm and tornadoes.

(e) Condensation

Explanation: In a free environment, the condensation of the vapour present in the atmosphere takes place around dust particles. This is because minute particles of dust, salt, smoke etc. soak water easily.