The diagram below shows the stump of a tree whose root grew into a small crack in bedrock and split the rock apart.

The action of the root splitting the bedrock is an example of
A)Physical Weathering
B)Chemical Weathering
C)Deposition
D)Erosion

Physical Weathering

Explanation:

As per the given conditions in the question, the primary effect is mechanical action which is also known as a physical weathering. During mechanical action, a rock is disintegrated into the smaller pieces. In the given statement, the root of tree would grow in the crack and try to develop a strong network to get nutrients necessary for tha tree growth. Thus, the root would exert a pressure in the crack to make more space for its growth and development (root network). This is primarily a mechanical action and an example of physical weathering.

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