How many types of mountains are there? Write briefly about each of them with help of diagrams.
Mountains are of three types—1. Fold Mountains, 2. Block Mountains and 3.Volcanic Mountains.
1.Fold Mountains. The Himalayan Mountains and the Alps are young fold ‘mountains. They have rugged relief and high conical peaks. The Aravali range is India is one of the oldest fold mountain systems in the world. The Appalachians in the North America and the Ural mountains in Russia are vaiy old fold mountains.
2.Block Mountains. These are created when large areas are broken and displaced vertically. The Uplifted blocks are known as horsts and the lowered blocks are called graben. The Rhine valley and the Vosges mountains in Europe are examples of such mountain systems.
3.Volcanic Mountains. They are formed by volcanic activity. Mt. Kilimanjaro in Africa and Mt. Fujiyama in Japan are examples of such mountains.
Answer the following questions briefly.
(a)What are the major landforms?
(b) What is the difference between a mountain and a plateau?
(c)What are the different types of mountains?
(d)How are mountains useful to man?
(e)How are plains formed?
(f)Why are the river plains thickly populated?
(g)Why are mountains thinly populated?
What kind of landforms are found in your state? Based on the reading of this chapter, say how they are of use to the people.
Quite often we use the land in a wasteful manner'. What do gou mean by wasteful manner'?[V. Imp.]
Fill in the blanks.
(a) A………… is an unbroken flat or a low-level land.
(b) The Himalayas and the Alps are examples of…………………… types of mountains.
(c) ……… areas are rich in mineral deposits.
(d) The………… is a line of mountains.
(e) The ……….. areas are most producting for farming.
State whether these sentences are true (T) or false (F).
(i) A rich variety of flora and fauna is found in the mountains.
(ii) The Rope Bridge is in Arunachal Pradesh.
(iii) Plateaus are vast stretches of flat land.
(iv) Plains are very useful because they are rich in mineral deposits.
(v) As we go higher, the climate becomes hotter.
(vi) Mt. Fujiyama in Japan is an example of volcanic mountains.
(vii) It is difficult to carry on construction work in plains.
How many types of mountains are there? Write briefly about each of them with help of diagrams.