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

The nomadic tribes need to move from one place to another in search of new pastures. When the grass in a particular part is exhausted and the season becomes unconducive, the nomadic tribes move to some other area. The seasonal movement of nomadic tribes is beneficial for the environment. It allows natural re-growth of grass in the pastureland.

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