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प्रश्न
Distinguish between the following pair
Granular disintegration and exfoliation
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उत्तर
Granular disintegration :
A form of weathering where the grains of a rock become loosened and fall out to leave a pitted and uneven surface.
Exfoliation :
When the surface layers of rounded and boulders gradually peel off in layers due to expansion of the outer layer during the day and the contraction of the same layer during night, the process is called exfoliation.
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संबंधित प्रश्न
Match the column
| Column A | Column B |
| 1. Granular disintegration | (i) causes feldspar to become a powdery mass |
| 2. Oxidation | (ii) is common in deserts |
| 3. Carbonation | (iii) is the simplest form of chemical weathering |
| 4. Hydration | (iv) mainly affects limestone regions |
| 5. Solution | (v) results in the rusting of iron |
State and explain the classification of mass movements.
What are the various factors governing the formation of soil? Which one is the most important and why?
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 |
Describe how changes of temperature lead to weathering.
OR
How do changing temperature lead to weathering?
Describe the work of plants as agents of weathering.
Give reasons for the following :
Farmers are encouraged to adopt soil conservation methods.
Give a geographical reason:
Slope is a major factor in mass wasting.
A region is having an annual mean temperature of 5°C and an annual rainfall of 1000 mm. Can you comment upon the weathering and the type with the help of the following questions? Discuss in class.
- Which type of weathering will be dominant here?
- Where will such a region be found?
Consider the given statement and choose the right option given below.
- The nature and magnitude of weathering differ from place to place and region to region.
- Granular disintegration takes place due to the action of volcanoes.
- Weathering is a prerequisite in the formation of soil.
Which of the above statement is/are the right statement.
