Which landform develops more due to the retreat of a waterfall?
Answer and explanation
Correct answer: Gorge
Waterfall retreat is controlled by differential erosion: hydraulic action and abrasion cut the softer rock beneath or behind the resistant cap rock. Repeated collapse makes the waterfall migrate upstream and leaves a narrow, steep-sided, deep valley or gorge in its path. A sea arch is produced by marine erosion, a barchan by wind deposition, and a drumlin by glacial deposition, so those alternatives do not fit.
Frequently asked questions
What is the correct answer to this question?
Gorge
Why is this the correct answer?
Waterfall retreat is controlled by differential erosion: hydraulic action and abrasion cut the softer rock beneath or behind the resistant cap rock. Repeated collapse makes the waterfall migrate upstream and leaves a narrow, steep-sided, deep valley or gorge in its path. A sea arch is produced by marine erosion, a barchan by wind deposition, and a drumlin by glacial deposition, so those alternatives do not fit.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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