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

Solution: Nomadic tribes move from one location in order to maintain their sustenance and way of life. As they are involved in animal husbandry, the availability of water is paramount to their existence, along with fresh pastures for their animals. When the pasture is depleted, they move to the next area, looking for new grazing grounds.

The advantages to the environment are as follows:

(I) The environment gets a chance to regrow and recover, thus maintaining the ecological balance of the area.

(II) It prevents overgrazing, as it will lead to the depletion of future grazing grounds.

(III) The manure of the animals helps in fertilising the soil, which will be instrumental in repeating the nomadic process of moving from one location to another a possibility.