Of the total geographical area of Assam the total area under forest is

Ptolemy was the author of the work namely:

The richest type of soil is the:

The Nilgiris are part of the :

Which mountain range separates North India from Peninsular India?

Normally the temperature decreases with the increase in height from the earth’s surface, because:

1. the atmosphere can be heated upwards only from the Earth’s surface

2. there is more moisture in the upper atmosphere

3. the air is less dense in the upper atmosphere

Select the correct answer using the codes given below: