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Difficulty: EasySoil Formation, Profiles, and Major Vegetation Types

Which of the following processes describes the in-situ disintegration and chemical decomposition of exposed rocks into smaller fragments without involving any downslope movement?

  1. WeatheringAnswer
  2. B
    Mass wasting
  3. C
    Metamorphism
  4. D
    Erosion

Answer

Weathering is the process involving the in-situ disintegration and chemical decomposition of rocks without transport.
The term weathering refers specifically to the in-situ (on-site) disintegration and decomposition of rocks by physical agents, chemical reactions, and biological activity without transport of the material.

Step-by-Step Solution

1
Identify the key characteristics given in the prompt
The key characteristics are 'in-situ' (in place) breakdown and decomposition without downslope movement or transportation.
This isolates static rock decay processes from dynamic transport processes.
2
Distinguish between weathering and transport processes
Weathering represents the static disintegration of parent material, whereas mass wasting, erosion, and metamorphism involve gravity movement, fluid transport, or deep crustal pressure changes.
Weathering is the primary initial step in soil formation providing raw mineral particles.

Key Concept

Weathering as an In-Situ Soil Formation Process
Estimated Time:45s
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Topics

Soil Formation, Profiles, and Major Vegetation Types

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