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Why is the presence of water so important in chemical weathering?

Answer and explanation

Correct answer: Water acts as a medium for many chemical reactions

The direct answer is A: water acts as a medium and active participant in many chemical reactions. Chemical weathering changes the minerals in rock rather than merely breaking the rock physically. Step by step: water enters pores and cracks; it dissolves some substances and carries dissolved ions; it also reacts with minerals through processes such as solution and hydrolysis; the original minerals may become weaker or transform into new minerals. Option A is correct because water enables and supports these reactions. Option B is wrong because water does not always burn rock. Option C is wrong because chemical weathering changes minerals rather than keeping them unchanged. Option D is wrong because reducing wind speed is not the main reason water matters in chemical weathering. Memory cue: water helps minerals dissolve, react, and change.

Related tags

WaterChemical WeatheringHydrolysis

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