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Question
What is the role of carbonation in weathering?
Long Answer
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Solution
The role of carbonation in weathering is the chemical breakdown of rocks by carbonic acid formed when carbon dioxide dissolves in rainwater. This carbonic acid reacts with calcium carbonate in calcareous rocks such as limestone and marble, converting it into calcium bicarbonate, which is soluble in water. This process leads to the disintegration and dissolution of these rocks, forming features like caves, stalactites, and stalagmites, characteristic of karst topography. Thus, carbonation causes chemical weathering by dissolving carbonate minerals in rocks.
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Chapter 9: Weathering and Denudation - SOLVE AND SCORE [Page 90]
