The mass of water vapour per unit volume of air is known as

Match List I with List II and select the correct answer using the code given below the lists

In which one of the following states is the percentage of Scheduled Tribes population to its total population highest?

Which one of the following set of states does not receive most of its rainfall from SW monsoon during the months of June to September?

On planet Earth there is no centrifugal force at the

The wavelength of X-rays is of the order of