Of the total energy supply of biosphere solar energy comprises :

Equatorial radius of earth :

The one nearest to earth between 8 and 12 km is called :

The geographical area of Kerala is –––––% of the geographical area of India.

What are the lines drawn on charts and maps through points of equal temperature known as?

While travelling from the East to the West and crossing each longitude, how much time is required to be adjusted, backwards and forwards?