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प्रश्न
Account for the two types of weathering.
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उत्तर
Weathering may be :
- Mechanical : weathering is the disintegration of rocks by mechanical forces, without chemical changes.
- Chemical : weathering is the gradual decomposition of the rock owing to the reaction and combination of the constituent minerals of the rock with oxygen or carbon dioxide present in the atmosphere. In Chemical weathering the presence of water is essential.
संबंधित प्रश्न
From encyclopedias and the Internet, find out the different types of soil found in India. Discuss the importance of these soils for crops cultivated in our country. You should form groups in class for this activity.
Soil formation is an important benefit of weathering. How is it important for mankind?
In which regions of the world is ‘frost action’ the common form of weathering?
Which is the most important effect of weathering?
What is known as Sheet Wash?
Say whether the following is ‘True’ or ‘False’.
External forces are engaged only in erosion
What do you understand by the following term:|
Oxidation
Describe how changes of temperature lead to weathering.
OR
How do changing temperature lead to weathering?
Give reasons for the following :
Farmers are encouraged to adopt soil conservation methods.
Give a geographical reason:
Effect of mass movement will be greater along the western slope of the Sahyadri's than the eastern slope.
