Solved UPSC CDS/OTA Question
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Q · Landformsmedium · 45s
Which process creates sand dunes?
TopicLandforms
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Sand dunes are formed by wind deposition in areas where there is abundant loose sand, such as beaches or deserts. Wind picks up sand particles and deposits them when its velocity decreases due to obstacles like vegetation or changes in topography. Over time, these deposits accumulate to form dunes of various shapes and sizes.
Final Answer: Option B - Wind deposition