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How is the term regolith related to weathering?

Answer and explanation

Correct answer: It is loose weathered material lying above parent rock

The direct answer is A: regolith is the loose, weathered material lying above the solid parent rock. Weathering breaks rocks into smaller pieces and may also change their minerals. The resulting cover can contain rock fragments, mineral particles and partly formed soil; this unconsolidated layer is called regolith. Option A is correct because it gives both essential ideas: loose material and its position above the parent rock. Option B is wrong because ocean depth is a measurement of seawater, not a weathering cover. Option C is wrong because hot volcanic gas is not a layer of broken rock. Option D is wrong because a glacier’s centre has no such meaning in geomorphology. Regolith may later support soil and plants, so it is important in soil formation. Memory cue: regolith means the loose rocky blanket over bedrock.

Related tags

RegolithWeathered MaterialSoil Formation

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