Q4 of 16 Page 29

Identify the type of weathering from the following description

Water which has accumulated in the crevices of rocks freezes. Consequently the rock breaks.

Action of frost

Explanation


When the water solidifies and becomes frost, its volume and dimensions increases. The particles of water expand. When the temperature falls below 0 ̊ and becomes negative, the water that has accumulated in the crevices and joints of the rock freezes. This created pressure within the rocks resulting in its weathering.


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