Answers

2016-07-05T19:05:13+08:00
Active and Inactive
They are classified according to their frequency of eruptions.
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2016-07-05T19:05:29+08:00
A popular way of classifying magmatic volcanoes is by their frequency of eruption, with those that erupt regularly called active, those that have erupted in historical times but are now quiet called dormant or inactive, and those that have not erupted in historical times called extinct.

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