Question

layers of the rock fall apart from the main rock what does it call ​

Answer 1

Answer:

GEOGRAPHY

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?

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ANSWER

Expansion of rock surface when heated by the Sun followed by contraction as the temperature falls can allegedly weaken bonds along grain boundaries and cause subsequent flaking off of rock fragments or dislodging of mineral grains. This is called insolation weathering. Generally, rocks are poor conductors of heat. The effect of daily heating and cooling is confined to surface layers of the rock. 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.