Class 6 Geography Chapter 6 Extra Questions and Answers Major Landforms of the Earth

Major Landforms of the Earth Class 6 Geography Chapter 6 Extra Questions and Answers Social Science CBSE Pdf free download are part of Extra Questions for Class 6 Social Science. Here we have given NCERT Extra Questions for Class 6 Social Science SST Geography Chapter 6 Major Landforms of the Earth.

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Class 6 Geography Chapter 6 Extra Questions and Answers Major Landforms of the Earth

Major Landforms of the Earth Class 6 Extra Questions and Answer Geography Chapter 6 Very Short Answers Type

Question 1.
How is the surface of Earth?
Answer:
The surface of the Earth is infinite variety of landforms.

Question 2.
What is Erosion?
Answer:
The wearing away of the Earth’s surface is called ‘erosion’. The surface is being lowered by the process of erosion.

Question 3.
What is Deposition?
Answer:
The surface of Earth is rebuilt by the process of‘deposition’.

Question 4.
What are the reasons of erosion and deposition?
Answer:
Erosion and deposition are carried out by running water, ice and wind.

Question 5.
What are glaciers?
Answer:
In some mountains, there are permanently frozen rivers of ice. They are called ‘glaciers’.

Question 6.
Why do less people live in the mountain areas? .
Answer:
Less people live in the mountain areas because of harsh climate.

Question 7.
Why is less land available for farming in the mountain areas?
Answer:
Less land is available for farming because of steep slopes.

Question 8.
What do you mean by word ‘range’?
Answer:
Mountains arranged in a line is known as range.

Question 9.
Are all mountains similar?
Answer:
No, all mountains are not similar. Mountains vary in their heights and shape and also may differ on their nature of formation.

Question 10.
Name the types of mountains.
Answer:
There are three types of mountains, which are:

1. Fold Mountains
2. Block Mountains
3. Volcanic Mountains.

Question 11.
How are Block mountains created?
Answer:
Block Mountains are created when large areas are broken and displaced vertically.

Question 12.
What do you mean by ‘horsts’ and ‘graben’?
Answer:
In the formation of Block Mountains, the uplifted blocks are termed as horsts’ and lower blocks are called ‘graben’.

Question 13.
How are Volcanic mountains formed?
Answer:
Volcanic mountains are formed due to volcanic activity.

Question 14.
Name the oldest plateau of India.
Answer:
It is Deccan plateau.

Major Landforms of the Earth Class 6 Extra Questions and Answer Geography Chapter 6 Short Answers Type

Question 1.
How is the surface of the Earth?
Answer:
The surface of the Earth is not the same everywhere. The Earth has an infinite variety of landforms. Some parts of the lithosphere may be rugged and some flat.

Question 2.
How are the landforms made?
Answer:
Landforms are a result of two processes. The ‘internal process’ leads to the upliftment and sinking of the Earth’s surface. Second, the external process is the continuous wearing down and rebuilding of the land surface.

Question 3.
Define the term erosion and deposition.
Answer:
Erosion and Deposition: 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’.

Question 4.
What do you mean by internal process and external process?
Answer:
Landforms are a result of two processes. The ‘internal process’ leads to the upliftment and sinking of the Earth’s surface. Second, the external process is the continuous wearing down and rebuilding of the land surface.

Question 5.
What are plateau? Write few lines about it.
Answer:
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. The ‘Tibet plateau’ is the highest plateau in the world. Plateaus are very useful because they are rich in mineral deposits.

Question 6.
How the plains formed?
Answer:
The process of formation of plains is a long process. Most of the plains are formed by rivers and their tributaries. In this process, the rivers flow down the slopes of mountains and erode them. They carry forward the eroded material. They deposit their load consisting of stones, and silt along their courses and in their valleys. These deposits form plains.

Major Landforms of the Earth Class 6 Extra Questions and Answer Geography Chapter 6 Long Answers Type

Question 1.
Describe major landforms.
Answer:
The major landforms are mountains, plateaus and plains. Details are given as under:
(i) Mountains: Mountain is natural elevation of the Earth surface. The mountains may have a small peak and a broad base. Less people live in the mountain areas because of harsh climate. Less land is available for farming because of steep slopes. Mountains may vary in their heights and shape. There are three types of mountains:

1. Fold Mountains
2. Block Mountains
3. the Volcanic Mountains.

Fold mountains are formed due to the processes of erosion. Block mountains are created when large areas are broken and displaced vertically. Volcanic mountains are formed due to volcanic activity. Mountains are very useful.

(ii) Plateau: 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. The Tibet plateau is the highest plateau in the world. Plateaus are very useful because they are rich in mineral deposits.

(iii) Plains: Plains are large stretches of flat land. 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. Generally, the plains are very fertile, easy to transport. Thus, these are thickly populated regions of the world. In Asia, plains are formed by the Ganga and the Brahmaputra in India and the Yangtze in China. Plain areas are useful for habitation.

Question 2.
Write a short note on the use of plateau.
Answer:
Plateaus are very useful. These are rich in mineral deposits. As a result, many of the mining areas in the world are located in the plateau areas. The African plateau is famous for gold and diamond mining.

In India huge reserves of iron, coal and manganese are found in the Chhotanagpur plateau. Plateaus’ lava are rich in black soil that are fertile and good for cultivation. Many plateaus have scenic spots and are of great attraction to tourists.

Question 3.
How are the mountains useful?
Answer:
Yes, mountains are very useful. The utility of the mountains can be summarized as under:

1. These are storehouse of water.
2. Many rivers have their source in the glaciers in the mountains.
3. Reservoirs are made and the water is harnessed for the use of people.
4. Mountains provides water for irrigation
5. Provides water for generation of hydroelectricity.
6. Mountains have a rich variety of flora and fauna. These provide fuel, fodder, shelter and other products like gum, raisins etc.
7. Mountains provide an idyllic site for tourists etc.

Picture Based Questions Class 6 Geography Chapter 6 Major Landforms of the Earth

Question 1.
Find out where are the following situated in the map.

1. Himalaya Mt.
2. Vindhya Range
3. Aravali Range
4. Deccan Plateau

Answer: