Discussion
Chemical weathering is more effective than mechanical weathering in
Answer: D
Chemical weathering is more effective than mechanical weathering in the cool temperate region, as the official key gives. There moisture is available all year and the low temperature keeps organic acids and dissolved carbon dioxide in the water, so reactions such as solution, carbonation and hydrolysis work on the rock steadily.
In arid and semi-arid regions water is scarce, so weathering is dominated by mechanical processes such as temperature-driven expansion and contraction. A coastal region is mainly affected by wave action and salt crystallisation, which are largely mechanical or physical processes.
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