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Under which condition can depth of weathering develop more?

Answer and explanation

Correct answer: Long stable surface and sufficient moisture

Direct answer: Option C, a long-stable surface with sufficient moisture. Weathering depth means how far weathering has progressed below the ground surface. Chemical weathering needs water, and it also needs time to act. On a stable surface, soil and rock remain in place for a long period instead of being quickly removed. Moisture can then enter cracks and pores repeatedly, carrying chemical reactions deeper. Option C is correct because it supplies both important factors: long duration and adequate water. Option A is wrong because very little rainfall provides little water, while rapid removal prevents a deep weathered layer from developing. Option B is wrong because continuous ice cover and no water flow greatly restrict the movement of liquid water and chemical reactions. Option D is wrong because fresh lava is continuously added, so an old stable weathering profile cannot develop easily. Memory cue: deep weathering needs time, stability and moisture.

Related tags

DepthStableSurfaceMoisture

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