Question

Explain the Block Disintegration process.​

Answer 1

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The splitting of rocks along the joints into blocks is called block disintegration. A form of weathering where the grains of rock become loosened and fall out due to repeated heating and cooling as a result of temperature changes.

$\bold{ExplanatioN:}$

In the daytime, intense solar heating causes rocks to expands. At night, the temperature falls so rocks cool and contrast. Repeated expansion and contraction produce stress along joints. Joints are then widened and deepened and finally break down the rocks block by block.

Some kinds of mechanical weathering are: Block Disintegration: When the difference between the day and night temperature is large, rocks expand and contract. Exfoliation: The temperature changes may create fissures or cracks in rocks. Water then enters into the cracks and the outer layer of the rock peels off.

Answer 2

Answer:

The splitting of rocks along the joints into blocks is called block disintegration.

Explanation:

It is caused by repeated contraction and expansion of rocks due to the freezing of water at night and their melting during the day time. So it mainly caused by the action of frost caused as a result of temperature changes.It generally occurs in those regions where there is a high difference in the daily range of temperature. Example- deserts

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