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Q8 (IAS/2001) Geography › World Physical Geography › Weathering and erosion Answer Verified

Identify the correct order of the processes of soil-erosion from the following:

Result
Your answer: —  ·  Correct: A

Explanation

The standard progression of water-induced soil erosion begins with splash erosion, where raindrop impact detaches and ‘splashes’ soil particles — this is the initiating stage [1]. These detached particles are then removed more uniformly across the surface by sheet erosion as surface runoff transports thin layers of soil; sheet erosion is generally imperceptible but sets the stage for concentration of flow [2]. When runoff concentrates into small channels, sheet flows evolve into rill erosion, producing visible small channels; continued enlargement and coalescence of rills lead to gully erosion, forming large channels and ravines [2]. Thus the correct sequential order is: Splash → Sheet → Rill → Gully.

Sources

  1. [1] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 25: Agriculture > Splash €rosion > p. 369
  2. [2] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 6: Environmental Degradation and Management > types of Soil Erosion > p. 18
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Code:

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