Which term matches the definition: no activity for some time; will probably not erupt again?

• A. Active
• B. Dormant
• C. Extinct
• D. Quiet Eruptions

Answer: (C)

Volcano activity statuses distinguish what’s happening now from what might happen in the future. An extinct volcano is described as having no activity for a long time and, importantly, it is not expected to erupt again. That fits the definition given: no activity for some time and probably not erupting in the future.

This contrasts with dormant, where the volcano is currently quiet but could erupt again someday, and with active, which means it is erupting or has erupted recently. The idea of “quiet eruptions” describes how an eruption happens rather than whether the volcano will erupt again, so it doesn’t match the definition as well.