Select the appropriate option and complete the following paragraph.
(pressure, high, steam, unsaturated, saturated, vapour, low, temperature, volume) For a given ___ of air, at a specific temperature, there is a limit on how much water vapour the air can contain. If the amount exceeds this limit, the excess ___ converts into water· droplets. When the air contains maximum possible water vapour, it is said to be ___ with vapour at that temperature. The amount of vapour needed to saturate the air depends on ___ of the air. If air temperature is ___ , it will need less vapour to saturate the air. If the vapour contained in air is less that the maximum limit, then the air is said to be --- .

Explanation

For a given volume of air, at a specific temperature, there is a limit on how much water vapour the air can contain. If the amount exceeds this limit, the excess vapour converts into water droplets. When the air contains maximum possible water vapour, it is said to be saturated with vapour at that temperature. The amount of vapour needed to saturate the air depends on temperature of the air. If air temperature is low, it will need less vapour to saturate the air. If the vapour contained in air is less that the maximum limit, then the air is said to be unsaturated.