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प्रश्न
Give a geographical reason:
Human is an agent of weathering.
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उत्तर
Human is an agent of weathering because
- Man is a biological agent of weathering. Due to economic and technological development, man has become the most powerful agent of weathering and erosion.
- Mining, blasting of hills and ridges for road and dam construction, quarrying for industrial and building materials, etc., results in a fast rate of disintegration of rocks.
- This may be accomplished by natural weathering processes in thousands to millions of years.
- Man accelerates the rate of weathering on hill slopes through activities like deforestation.
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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.
Define weathering.
Describe the chief characteristics of weathering.
State and explain the classification of mass movements.
How is humus formed?
What do you understand by the following term:|
Oxidation
Rewrite the following sentence, choosing the right word from the options given below:
_______soils are those which are undisturbed by erosion or deposition.
Match the following pairs correctly:
| A | B |
| (a) A soil formed at a place or a particular site | Alluvium |
| (b) Over a long period of time this soil become mature | Transported soil |
| (c) It is most fertile soil when renewed every year | Podzol |
| (d) This soil is found is cool or cold humid areas | Residual |
Give reasons for the following :
A soil dominated by clay makes tilling difficult.
Give a geographical reason:
Oxidation changes the size and colour of the rocks.
