India is a vast country with great diversity of physical features. Certain parts in India are so fertile that they are counted amongst the most fertile regions of the world while other are so unproductive and barren that hardly anything car be grown there.
The regions of Indo- Gangetic Valley belong to the first category, while certain area of Rajasthan falls under the later category. From the point of view of climate, there is sharp contrast. As Minoo Massami has said that, "India has every variety of climates from the blazing heat of the plains, as hot in places as hottest Africa-Jacobabad in Sindh- to freezing point (the Arctic cold of the Himalayas).
The Himalayan ranges which are always covered with snow are very cold while the deserts of Rajasthan are well known for their heat. The country also does not get uniform rainfall. There are certain areas like Cherapunji in Assam which get almost 460" of rain -fall per year which is considered to be world's highest record on the other hand, Sindh and Rajasthan get hardly 3 inches of rainfall per- year. This variety in climate has also contributed to a variety of flora and fauna. In fact, India possesses richest variety of plants and animals known in the world.
India possesses a rich variety of races. In view of this variety Prof. V.A. Smith says, "From the human point of view India has been often described as an ethnological Dr racial museum in which numberless races of mankind may be steadied."
"The vast population of India consists of the jungles tribe (Hence Bhils, Kols, Santhals), the Greeks,...