Solved UPSC CDS/OTA Question
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Q · Rocks and Rock Cyclemedium · 45s
Which process is responsible for changing sedimentary rocks into metamorphic rocks?
TopicRocks and Rock Cycle
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Metamorphism involves exposing preexisting rocks (like sedimentary types) to intense heat and pressure, often deep underground, without melting them. This leads to a physical and chemical change, transforming the rocks’ mineralogy and structure into metamorphic rocks such as slate or marble.
Final Answer: Option C - Heat and pressure