Mechanical weathering is more effective than chemical weathering in the breakdown of the individual grains of a large rock.

Question

Quizplus · Accepted Answer

Mechanical weathering breaks down rocks into smaller pieces without changing the chemical composition of the material, whereas chemical weathering alters the chemical composition of rocks, effectively breaking down the bonds holding the grains together, which can lead to a more thorough breakdown of the rock on a molecular level.

Mechanical Weathering Is More Effective Than Chemical Weathering in the Breakdown