Which of the following is present in the atmosphere in three forms ?

Which type of clouds look like cotton wool ?

Rainfall is mainly classified into how many types on the basis of their origin ?

Which of the following is caused by the loss of heat ?

Which of the following is the most important constituent of the atmosphere for human beings ?

Water vapour present in the air is known as

Which type of rain is common in the equatorial regions and interior parts of the continent, particularly in the northern hemisphere ?

The air that contains moisture to its full capacity is

The precipitation in the form of water is called 

When condensation takes place at a dew point below freezing point in the form of minute ice crystals is called