EARTH SCIENCE
VOLCANOES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When it is cut off from its magma supply
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When it is cut off from its lava supply
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When it doesn’t have lava flowing
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All of the above
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Detailed explanation-1: -Volcanoes are classified as active, dormant, or extinct. Active volcanoes have a recent history of eruptions; they are likely to erupt again. Dormant volcanoes have not erupted for a very long time but may erupt at a future time. Extinct volcanoes are not expected to erupt in the future.
Detailed explanation-2: -Extinct → Extinct volcanoes are those which have not erupted in human history. Examples of extinct volcanoes are Mount Thielsen in Oregon in the US and Mount Slemish in Co.
Detailed explanation-3: -Extinct volcanoes haven’t erupted for tens of thousands of years, and aren’t expected to erupt again. What causes volcanoes to go extinct? Simply put, they’re cut off from their supply of lava.
Detailed explanation-4: -Here’s what that means. New analysis provides a stunning peek into the inner workings-and potential hazards-of volcanoes thought to have long ago gone quiet.