Geo –forms of the Earth (Extra Questions)
Geo –forms of the Earth (Extra Questions)
1. Name the two types of forces that help in formation of different landforms.
Exogenic and Endogenic Forces
2. What causes slow movements within the earth?
Slow movements with the earth are caused by compression or tension
3. State the broad classification of landforms.
major landforms and minor landforms
4. What is a mountain?
A mountain is a naturally elevated large mass of land forming peaks above the surrounding area.
5.What is a snow cap and a glacier?
When the peak of the mountain is covered with snow, it is called snow cap. Glaciers are rivers of ice that flow from these snow caps down the slopes of a mountain.
6. What are ranges?
Ranges are generally long chains of mountains that cover hundreds of kilometers.
7. How are fold mountains formed?
Fold mountains are formed when large scale Earth movements caused by wrnkling or folding of the Earth’s crust along the line of weakness. The land is lifted in a wave like formation. The upfold or anticline forms the mountain and the downfold or syncline forms the valley.
8. How are the block mountains formed?
Sometimes forces of compression and tension may cause cracks and faults on the Earth’s crust. When the land between the two faults is pushed upwards above the surrounding level, they form block mountain or horsts. On the contrary of the land is pushed downwards, it forms a rift valley or graben.
9.What are plateaus?
High plain or tableland, usually consisting of relatively flat terrain that is raised significantly above the surrounding area, often with one or more sides with steep slopes.
10. Name three types of plateaus.
Intermontane, Piedmont, Continental
11. How would you distinguish a plateau from a mountain?
Mountains are higher and have peaks that are narrow whereas plateaus have a flat table land like top.
12. What are continental plateaus?
Continental Plateaus are upliftment of a block of land from the adjacent lowland or sea.
13. Which plateau is known as the ‘Roof of the World’?
Tibetan Plateau is known as the ‘Roof of the World’
14. Name one famous waterfall in India which is located on plateau.
Jog Falls
15. How do plains help in agricultural activities?
Plains are flat lands which makes it easier to carry out agricultural activities. Plains also help in transportation and making it easy for farmers to carry out agricultural processes.
16. What are plains?
Plains are flat low lands which are formed either by erosion of old high landforms or by depositional activity.
17. Name the three types of plains.
Structural Plains, Depositional Plains and Erosional Plains.
18. Give importance of Plains.
Fertile soil helps in agriculture, rivers give enough water for irrigation and human settlements, construction of buildings, industries and transportation makes it easy on flat surface.
19. How are structural plains formed?
These plains are formed by internal forces that result in upliftment of the horizontal layears of the Earth.
20. How are depositional plains formed?
These plains are formed by deposition of various agents of erosion such as wind, rivers, glaciers, etc. over the period of years.
21. How are erosional plains formed?
These plains are carved when rivers, wind, glaciers, etc. erode and smoothen the irregularities of the earth’s surface.
22. What are the major landforms?
The major landforms of the earth are Mountains, Plateaus and Plains.
23. What is the difference between a mountain and a plateau?
24. How are mountains useful to man?
28. Why are the river plains thickly populated?
Plains are usually highly fertile and hence most ideal for cultivation. It is very easy to make transport network in the plains. Due to above mentioned factors; plains are the best areas for human habitation. Hence, plains are thickly populated.
1. Name the two types of forces that help in formation of different landforms.
Exogenic and Endogenic Forces
2. What causes slow movements within the earth?
Slow movements with the earth are caused by compression or tension
3. State the broad classification of landforms.
major landforms and minor landforms
4. What is a mountain?
A mountain is a naturally elevated large mass of land forming peaks above the surrounding area.
5.What is a snow cap and a glacier?
When the peak of the mountain is covered with snow, it is called snow cap. Glaciers are rivers of ice that flow from these snow caps down the slopes of a mountain.
6. What are ranges?
Ranges are generally long chains of mountains that cover hundreds of kilometers.
7. How are fold mountains formed?
Fold mountains are formed when large scale Earth movements caused by wrnkling or folding of the Earth’s crust along the line of weakness. The land is lifted in a wave like formation. The upfold or anticline forms the mountain and the downfold or syncline forms the valley.
8. How are the block mountains formed?
Sometimes forces of compression and tension may cause cracks and faults on the Earth’s crust. When the land between the two faults is pushed upwards above the surrounding level, they form block mountain or horsts. On the contrary of the land is pushed downwards, it forms a rift valley or graben.
9.What are plateaus?
High plain or tableland, usually consisting of relatively flat terrain that is raised significantly above the surrounding area, often with one or more sides with steep slopes.
10. Name three types of plateaus.
Intermontane, Piedmont, Continental
11. How would you distinguish a plateau from a mountain?
Mountains are higher and have peaks that are narrow whereas plateaus have a flat table land like top.
12. What are continental plateaus?
Continental Plateaus are upliftment of a block of land from the adjacent lowland or sea.
13. Which plateau is known as the ‘Roof of the World’?
Tibetan Plateau is known as the ‘Roof of the World’
14. Name one famous waterfall in India which is located on plateau.
Jog Falls
15. How do plains help in agricultural activities?
Plains are flat lands which makes it easier to carry out agricultural activities. Plains also help in transportation and making it easy for farmers to carry out agricultural processes.
16. What are plains?
Plains are flat low lands which are formed either by erosion of old high landforms or by depositional activity.
17. Name the three types of plains.
Structural Plains, Depositional Plains and Erosional Plains.
18. Give importance of Plains.
Fertile soil helps in agriculture, rivers give enough water for irrigation and human settlements, construction of buildings, industries and transportation makes it easy on flat surface.
19. How are structural plains formed?
These plains are formed by internal forces that result in upliftment of the horizontal layears of the Earth.
20. How are depositional plains formed?
These plains are formed by deposition of various agents of erosion such as wind, rivers, glaciers, etc. over the period of years.
21. How are erosional plains formed?
These plains are carved when rivers, wind, glaciers, etc. erode and smoothen the irregularities of the earth’s surface.
22. What are the major landforms?
The major landforms of the earth are Mountains, Plateaus and Plains.
23. What is the difference between a mountain and a plateau?
Mountain
|
Plateau
|
| It is a naturally elevated surface of the earth. | It is an elevated flat land. |
| It is higher than the surrounding area. | It is a flat-topped land that stands above the surrounding area. |
| Mountains have peaks | Plateaus are flattened highlands |
Mountains useful to man in following ways:
• Mountains are a storehouse of water. Many rivers have their source in the glaciers in the mountains. Water from the mountains is also used for irrigation and generation of hydro-electricity.
• They have a rich variety of flora and fauna.
• The forests provide fuel, fodder, shelter and other products like gum, raisins, etc.
• Mountains provide an idyllic site for tourists.
• Several sports like paragliding, hang gliding, river rafting and skiing are popular in the mountains
• They have a rich variety of flora and fauna.
• The forests provide fuel, fodder, shelter and other products like gum, raisins, etc.
• Mountains provide an idyllic site for tourists.
• Several sports like paragliding, hang gliding, river rafting and skiing are popular in the mountains
25.How are plains formed?
Most of the plains are formed by rivers and their tributaries. The rivers flow down the slopes of mountains and erode them. They carry forward the eroded material. Then they deposit their load consisting of stones, sand and silt along their courses and in their valleys. It is from these deposits that plains are formed.
26. Why are the river plains thickly populated?
The river plains thickly populated as more flat land is available for building houses, as well as for cultivation.
27. Why are mountains thinly populated?
The mountains are thinly populated because of harsh climate. Also, the slopes are steep, less land is available for farming.28. Why are the river plains thickly populated?
Plains are usually highly fertile and hence most ideal for cultivation. It is very easy to make transport network in the plains. Due to above mentioned factors; plains are the best areas for human habitation. Hence, plains are thickly populated.
