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Weathering

Which of the ...

Question

Which of the following phenomenon describes the weathering of the rock layer by layer because of its expansion and contraction that builds up stress and pressure in it?

A

Erosion

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B

Denudation

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C

Exfoliation

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D

Expiration

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Solution

The correct option is C Exfoliation

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Q. Which type of weathering involves the outer layer of rock peeling off due to expanding as it is heated and contracting as it is cools?

Q. Read the following statements (i - iv) and select the correct statements related to the process of weathering.

(i)‌ Rate of weathering is determined by the climatic conditions of a given place.‌
(ii)‌ Water from plants is absorbed by minerals in rock and they are weathered due to expansion and contraction.
(iii)‌ The roots of plants which grow nearby penetrate the rocks and crack them.
(iv)‌ Stress caused due to crystallisation of salts on rock surface causes weathering of rock.

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