Solved UPSC CDS/OTA Question
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Q · Landformsmedium · 45s
Which process creates a river terrace?
TopicLandforms
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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River terraces are formed by river rejuvenation, where a river resumes downcutting after a period of lateral erosion and floodplain formation. This can occur due to factors like climate change, sea level changes, or tectonic uplift. The renewed vertical erosion cuts down through the old floodplain, leaving elevated remnants as terraces on either side of the new valley.
Final Answer: Option B - River rejuvenation and renewed downcutting