NCERT Solutions for Class 6 Social Science Geography Chapter 6,A landform is a natural feature of the solid surface of the Earth. Examples include Mountains, Plateaus, and Plains.
Mountains are classified into different types based on their mode of transformation: Fold Mountains, Block Mountains and the Volcanic Mountains. A plateau is an elevated area with a more or less leveled land on its top.
A plain is a low-lying relatively flat land surface with a very gentle slope and minimum local relief
NCERT Solutions for Class 6 Social Science Geography Chapter 6-Major Landforms of the Earth
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1. Answer the following questions briefly.
(a) What are the major landforms?
Sol : The major landforms are:
- Mountains
- Plateaus
- Plains
(b) What is the difference between a mountain and a plateau?
Sol : The difference between a mountain and a plateau is given below:
| Mountain | Plateau |
| A mountain is any natural elevation of the earth surface. | A plateau is an elevated flat land. |
| It is considerably higher than the surrounding area. | It is a flat-topped tableland, standing above the surrounding area. |
(c) What are the different types of mountains?
Sol : There are 3 different types of Mountains:
- Fold Mountains
- Block Mountains
- Volcanic Mountains
(d) How are mountains useful to man?
Sol : Mountains are useful to man in various ways:
- 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 the cultivation of crops.
- Mountains have a rich variety of flora and fauna.
- The forests provide fuel, fodder, shelter and other products like gum, raisins, etc.
- Several sports like paragliding, hang gliding, river rafting and skiing are popular in the mountains.
(e) How are plains formed?
Sol : When the rivers flow through mountain slopes, erosion of mountains occur. The flowing river carries the eroded material and the deposit materials like silt, clay and stones are gathered on the valleys. This leads to the formation of plains.
(f) Why are the river plains thickly populated?
Sol : River plains are thickly populated because of the fertility of the plains. This makes the construction of a transportation network comparatively easier.
(g) Why are mountains thinly populated?
Sol : Mountains are thinly populated because :
- The climate is harsh at the mountain areas.
- Slopes are steep at the mountains and that reduces the land available for farming.
2. Tick the correct answers.
(a) The mountains differ from the hills in terms of
(i) elevation (ii) slope (iii) aspect
Sol : (i) elevation
(b) Glaciers are found in
(i) the mountains (ii) the plains (iii) the plateaus
Sol : (i) the mountains
(c) The Deccan Plateau is located in
(i) Kenya (ii) Australia (iii) India
Sol : (iii) India
(d) The river Yangtze flows in
(i) South America (ii) Australia (iii) China
Sol : (iii) China
(e) An important mountain range of Europe is
(i) the Andes (ii) the Alps (iii) the Rockies
Sol : (ii) the Alps
3. Fill in the blanks.
1. A ___________ is an unbroken flat or a low-level land.
Sol : A Plain is an unbroken flat or a low-level land.
2. The Himalayas and the Alps are examples of _______________types of mountains.
Sol : The Himalayas and the Alps are examples of fold types of mountains.
3. _____________ areas are rich in mineral deposits.
Sol : The Range is a line of mountains.
4. The _________________ is a line of mountains.
Sol : The Range is a line of mountains.
5. The ____________areas are most productive for farming.
Sol : The plain areas are most productive for farming.
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