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Difficulty: EasyWeathering and Mass Wasting Processes

Which of the following geographical processes is an example of mass wasting rather than in-situ weathering?

  1. The downslope movement of soil creep under the influence of gravityAnswer
  2. B
    The chemical breakdown of granite through hydrolysis
  3. C
    The physical peeling of rock layers due to exfoliation
  4. D
    The dissolution of limestone by carbonic acid

Answer

The downslope movement of soil creep under the influence of gravity is a mass wasting process.
Soil creep involves the slow, downhill movement of soil and rock debris purely under the force of gravity, satisfying the fundamental definition of mass wasting. In contrast, weathering processes break down rock material in-situ without transporting it.

Step-by-Step Solution

1
Identify the core mechanism of weathering versus mass wasting
Weathering involves the static, in-situ disintegration or decomposition of rocks, whereas mass wasting involves the movement of weathered materials down a slope under gravity.
Mass wasting requires downhill transport driven primarily by gravity.
2
Evaluate the given options against this distinction
Hydrolysis, exfoliation, and carbonation break down rock in place (weathering). Soil creep involves downslope movement (mass wasting).
Soil creep is the only process described that involves downslope displacement.

Key Concept

Distinction between in-situ weathering and gravity-driven mass wasting
Estimated Time:45s
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Topics

Weathering and Mass Wasting Processes

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