Solved UPSC CDS/OTA Question
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Q · VolcanoMedium · 45s
Which factor determines the explosiveness of a volcanic eruption?
TopicVolcano
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Explanation:More dissolved gases trapped in viscous magma = greater explosive force.
Final Answer: Option B — Amount of dissolved gases