Question

a volcano that has not erupted in a very long time suddenly has a plume of steam coming from it. which best describes this volcano?
○ was dormant and is now active
○ was quiet and is now active
○ was extinct and is now explosive
○ was dormant and is now explosive

Explanation:

A volcano that has not erupted in a long time is classified as dormant. A steam plume is a sign that it is becoming active again, not necessarily explosive (explosive eruptions involve more violent ejecta, not just steam), and an extinct volcano is considered unlikely to ever erupt again.

Answer:

was dormant and is now active