Question

Which of the following best explains the process of exfoliation?

• A. The process of weathering of a rock due to wind and water.
• B. The process of rock formation due to deposition of layers by rivers and wind.
• C. The process of weathering of rocks layer by layer due to temperature fluctuations.
• D. The process of weathering due to growth of plant roots and burrowing of animals.

Answer 1

The correct option is C The process of weathering of rocks layer by layer due to temperature fluctuations.

When rocks are exposed to sunlight and harsh temperatures, it expands. When the temperature falls at night, it contracts. Due to the temperature fluctuations and pressure, the layers of the rock begin to crack, and the outer layers start to peel away layer by layer. This phenomenon is known as exfoliation.