Question

F. Answer the following questions.
1. What is the significance of mountains for human beings?
2. How are the block mountains formed?
13. How are the structural plains formed?
4. Write a short note on the intermontane plateau.
5. What is the importance of plateaus for human beings?​

Answer 1

Answer:

Ans 1 ..

Mountains aren't just a sight to behold—they cover 22 percent of the planet's land surface and provide habitat for plants, animals and about 1 billion human beings. The vital landforms also supply critical resources such as fresh water, food and even renewable energy.

Ans 2..

These mountains form when faults or cracks in the earth's crust force some materials or blocks of rock up and others down. Instead of the earth folding over, the earth's crust fractures (pulls apart). It breaks up into blocks or chunks. ... Often fault-block mountains have a steep front side and a sloping back side.

Ans 3..

These plains are mainly formed by the upliftment of a part of the sea floor or continental shelf. ... The structural plains may also be formed by the subsidence of areas.

Ans 4..

A plateau which is enclosed or surrounded by mountain ranges is known as an intermontane plateau. The Plateau of Tibet and the Plateau of Mongolia are the two intermontane plateaus in Asia. The Plateau of Tibet is surrounded by the KunlunMountains in the north and the Himalayas in the south.

Ans 5..

Plateaus are important because of the following reasons: Plateaus are storehouses of minerals. They have rich deposits of minerals. While the African Plateau has huge reserves of gold and silver, Chota Nagpur Plateau in India is famous for coal, iron and manganese deposits.