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Question:

Explain why nomadic tribes need to move from one place to another. What are the advantages to the environment of this continuous movement?
 

Answer:

The nomadic tribes need to migrate from one place to another in search of new pastures. When the grass in a particular part got exhausted and the season becomes unconducive, the nomadic tribes then migrates to some other area. The seasonal movement of nomadic tribes is very much beneficial for the environment. It allows regrowth of grass naturally in the pastureland. The movement of the nomadic pastoralists from the downward to the upward areas and vice-versa allowed appropriate time for natural restoration of vegetation grounds. Their continuous shifting provides sufficient forage to the various different animals; both at the high mountains and the lower hills. They also helped in maintaining the quality of the pastures.


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