A deep valley characterized by steep step-like slope is known as

A deep valley characterized by steep step-like slope is known as

[amp_mcq option1=”U-shaped valley.” option2=”Blind valley.” option3=”Gorge.” option4=”Canyon.” correct=”option4″]

This question was previously asked in
UPSC NDA-2 – 2019
A deep valley characterized by steep step-like slopes is known as a canyon.
Canyons are deep gorges, often with steep to sheer walls, frequently carved by rivers, especially in arid or semi-arid regions where differential erosion of layered sedimentary rock creates a stair-step appearance on the slopes.
While a gorge is also a deep, narrow valley with steep sides, the description “step-like slope” is particularly characteristic of canyons formed in horizontally layered rock where resistant layers form cliffs and weaker layers erode into slopes or benches, creating a stepped profile. A U-shaped valley is glacial in origin, and a blind valley ends abruptly at a sinkhole.
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