Describe the relief features of land in India and their importance.

India has a variety of relief features of land 1.e., mountains, plateaus, plains and islands.
(i) 43 per cent of land is plain. It is useful for agriculture and industry.
(ii) 30 per cent of the total land area is mountainous which ensures perennial flow of some rivers. The mountains provide facilities for tourism and ecological aspects.
(iii) 27 per cent area is plateau region which possesses rich reserves of minerals, fossil fuels and forests.