Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
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Q · VolcanoMedium · 45s
Consider the following statements about volcanoes: Shield volcanoes are formed mainly by basaltic lava. Cinder cone volcanoes are usually the largest volcanoes on Earth. Composite volcanoes have alternating layers of lava and pyroclastic materials. Which of the statements given above is/are correct?
TopicVolcano
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Q 1 / 30Next question →
Step-by-Step Solution
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Explanation:
Shield volcanoes are broad with gentle slopes, formed mainly by fluid basaltic lava.
Cinder cones are the smallest volcanoes, not the largest.
Composite or stratovolcanoes do have alternating layers of lava flows and pyroclastic deposits.
Final Answer: Option C — 1 and 3 only