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Sometimes after an eruption , the top of a volcano may collapse down into the partially emptied magma chamber. Which creates a very large opening called a caldera.

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Q: What is an explanation of how calderas form?
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yes they can also form rainbows


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Do calderas form into lakes?

No. Calderas form when a volcano produces an extremely massive eruption and collapses in on itself. But the volcano will often continue to erupt after this. For example, the volcano Krakatoa formed a caldera in 1883, but eruptions since then have formed a new island that is currently very active. There is evidence that the volcano has done such a thing several times.


What is the difference between explain and explanation?

ExPlain is a verb. Explanation is the noun form of explain (the base form) this is am explanation becuz I'm explaining it to u :P


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