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Geography GK · Q51

World Agriculture, Minerals And Industries

Competitive Exams · Geography GK · question 51

Q51

The removal of rock, layer by layer due to weathering is called ________

A.
Block disintegration
B.
Dellation
C.
Exfoliation
Answer
D.
Granular disintegration

Answer: Option C

Solution

Answer: Option C
Solution:
The removal of rock, layer by layer due to weathering is called Exfoliation. Rocks are generally poor conductors of heat. The effect of daily heating and cooling is confined to surface layers of rocks. The outer layer of rock is heated up and expands during the day while the inner layer of rock remains cool. The outer layers eventually peel off (like an onion skin), exposing the inner layers to the surface for further exfoliation.