Geography · Geomorphology
The Western Ghats escarpment displays a stepped landscape with prominent knickpoints at various elevations. Which geomorphic mechanism explains this vertical zonation and the migration of knickpoints?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Erosional retreat and river incision through alternating layers of resistant massive basalt and softer intertrappean units during long-term tectonic uplift✓
- 2Uniform, rapid wind abrasion across homogeneous granite batholiths uninfluenced by fluvial processes
- 3Glacial plucking and lateral moraine deposition across active rift valley borders
- 4Recent coastal wave action creating marine terraces along the base of the Deccan plateau
Correct answer
Erosional retreat and river incision through alternating layers of resistant massive basalt and softer intertrappean units during long-term tectonic uplift
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