Question

The sudden contraction and expansion peels off the outer rock layer:

Options

• Solution

• Exfoliation

• Hydration

• Oxidation

Answer 1

Exfoliation

Explanation:

Exfoliation is the process where the outer layers of rock peel off due to the sudden contraction and expansion caused by temperature changes. When rocks are heated during the day, they expand, and when they cool at night, they contract. This repeated cycle causes the outer layers of rock to crack and peel off in thin sheets or layers. Exfoliation primarily affects rocks like granite.