Volcanoes
Active volcano
An active volcano is a volcano that has had at least one eruption during the past 10,000 years.
Dormant volcano
A dormant volcano is an active volcano that is not erupting, but supposed to erupt again.
Extinct volcano
An extinct volcano is one which is no longer active and hasn't erupted in historical times.Some volcanoes lie dormant for thousands of years before erupting again.
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