Question

How are mountains useful to man?
How are plains formed? ​

Answer 1

Answer:

1) Mountains are very useful. The mountains are a storehouse of water. ... Water from the Mountains is also used for irrigation and generation of hydro-electricity. The river valleys and terraces are ideal for cultivation of crops.

2)Plains form in many different ways. Some plains form as ice and water erodes, or wears away, the dirt and rock on higher land. Water and ice carry the bits of dirt, rock, and other material, called sediment, down hillsides to be deposited elsewhere. As layer upon layer of this sediment is laid down, plains form.

Explanation:

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Answer 2

(i) Mountains are storehouse of water is the basic need of the human beings. Reservoirs are made and the water is harnessed for the use of people. Water is used for irrigation and generation of hydroelectricity.

(ii) Mountains have a rich variety of flora and fauna.

(iii) Mountains provide an idyllic site for tourists. They visit the mountains for their scenic beauty.