On this page, you will find NCERT Class 6 Geography Chapter 6 Notes Pdf free download. CBSE Class 6 Social Science Notes Geography Chapter 6 SST Major Landforms of the Earth will seemingly help them to revise the important concepts in less time.
Major Landforms of the Earth Class 6 Notes Social Science Geography Chapter 6
CBSE Class 6 Geography Chapter 6 Notes Understanding The Lesson
1. The surface of the Earth is not the same everywhere.
2. The Earth has an infinite variety of landforms. Some parts of the lithosphere may be rugged and some flat.
3. Landforms are a result of two processes. The ‘internal process’ leads to the upliftment and sinking of the Earth’s surface. Second, external process is the continuous wearing down and rebuilding of the land surface.
4. The wearing away of the Earth’s surface is called ‘erosion’. The surface is being lowered by the process of erosion and rebuilt by the process of‘deposition’.
5. These two processes, that is, erosion and deposition are carried out by running water, ice and wind.
6. Mountain is natural elevation of the Earth surface. The mountains may have a small peak and a broad base.
7. In some mountains, there are permanently frozen rivers of ice. They are called ‘glaciers’.
8. Less people live in the mountain areas because of harsh climate.
9. Less land is available for farming because slopes are steep.
10. Mountains arranged in a line is known as range.
11. Mountains vary in their heights and shape.
There are three types of mountains:
- Fold Mountains
- Block Mountains
- the Volcanic Mountains.
12. Fold mountains are formed due to the processes of erosion.
13. Block Mountains are created when large areas are broken and displaced vertically. The uplifted blocks are termed as ‘horsts’ and lower blocks are called ‘graben’.
14. Volcanic mountains are formed due to volcanic activity.
15. Mountains are very useful.
16. A plateau is an elevated flat land. It is a flat-topped table land standing above the surrounding area. A plateau may have one or more sides with steep slopes. These may be young or old, hundred metres to several thousand metres.
17. The Tibet plateau is the highest plateau in the world.
18. Plateaus are very useful because they are rich in mineral deposits.
19. Plains are large stretches of flat land.
20. Most of the plains are formed by rivers and their tributaries. Some of the largest plains made by the rivers are found in Asia and North America.
21. Generally, the plains are very fertile, easy to transport. Thus, these are thickly populated regions of the world.
22. In Asia, plains are formed by the Ganga and the Brahmaputra in India and the Yangtze in China.
23. Plains areas are useful for habitation.
Major Landforms of the Earth Class 6 CBSE Notes Important Terms
Internal Process: The process that originates inside the Earth, is called the Internal Process.
External Process: The process which works on the Earth’s surface, is called External Process.
Mountain: Mountain is natural elevation of the Earth surface.
Plateau: A plateau is an elevated flat land.
Plain: Plains are large stretches of flat land.