A caldera is a large cauldron-like depression that forms following the evacuation of a magma chamber or reservoir. When large volumes of magma are erupted over a short time, structural support for the crust above the magma chamber is lost, and the entire structure caves in and forms a large bowl-like shape.
Your answer should be A.km/s does s mean speed?
Explanation:
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Answer:
The answer is D
The second law of thermodynamics
E, 63% of the value. I forget the rationale behind it but I learnt that in engineering. 90% confident for that answer.