Solved UPSC CDS/OTA Question
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Q · Rocks and Rock Cyclemedium · 45s
How are sedimentary rocks primarily formed?
TopicRocks and Rock Cycle
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Sedimentary rocks form through the accumulation, compaction, and cementation of sediments such as sand, silt, clay, or organic material. These sediments settle in layers over time, typically in water bodies, where pressure compresses them and minerals act as cement, solidifying the layers into rock.
Final Answer: Option B - Compaction and cementation of sediments