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Four processes are described below: Process A: Waves in a river lift rocks which crash down to the river bed and break Process B: Water in the cracks of rocks freezes and breaks open the rocks Process C: An organic acid produced by rotting vegetation makes holes in rocks Process D: Roots of plants push against rocks and make cracks in them Which process represents chemical weathering?


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Answer:

C: An organic acid produced by rotting vegetation makes holes in rocks Process

Explanation:

In chemical weathering , weathering process occurs due to chemical reaction . When organic acid produced by rotting vegetation makes holes in rocks , chemical reaction takes place between acid and rock which results in the formation of new product . Hence it is an example of chemical weathering .

In all the rest of options , weathering is due to physical process .

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