An active volcano is defined as one that
A) has erupted at least once within the past decade.
B) has erupted at least once within the past century.
C) has erupted at least once within recorded history.
D) exhibits activity indicative of an imminent eruption.

Question

Quizplus · Accepted Answer

An active volcano is defined as one that has erupted at least once within recorded history. This means that there is some documentation or record of the volcano erupting in the past, even if it was a long time ago. The other options (A, B, and D) may also be indicators of active volcanoes, but do not necessarily define them as such. For example, a volcano that has not erupted in the past decade may still be considered active if it has a history of eruptions in the past.

An Active Volcano Is Defined as One That