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Question
What do you understand by the following term:|
Exfoliation
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Solution 1
It is the process of scaling off the curved outer shells of the rock. Exfoliated dome-shaped rocks are largely found in great deserts.
Solution 2
When the rock consists of homogeneous minerals the thin surface layer of rock absorbs heat during the day and expands, while during the night, this surface layer contracts. In a few days the rock breaks up or peels off into layers. This type of weathering is called exfoliation.
RELATED QUESTIONS
Soil formation is an important benefit of weathering. How is it important for mankind?
Give geographical reason:
Temperature changes result in physical weathering.
Define weathering.
On what factors does the weathering depend?
How is humus formed?
Distinguish between the following:
Sheet erosion and gully erosion.
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 |
Distinguish between the following :
Erosion and Weathering.
Give reasons for the following :
Farmers are encouraged to adopt soil conservation methods.
