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

Which type of clouds are black or dark grey ?

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

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

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

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

Which type of clouds look like cotton wool ?

 A mass of minute water droplets is known as

Which of the following process  is responsible for transforming liquid into vapour.

In temperature regions the rainfall is mainly