GEOLOGY

Detailed explanation-1: -Potentially Active Volcano It is a volcano that is morphologically young-looking, suggesting it possibly erupted within the last 10, 000 years, but has no historical or analytical records of eruption.

Detailed explanation-2: -Extinct → Extinct volcanoes are those which have not erupted in human history.

Detailed explanation-3: -Volcanoes with no record of eruptions are considered as extinct or inactive. Their physical form since their last activity has been altered by agents of weathering and erosion with the formation of deep and long gullies. Inactive does not necessarily indicate the volcano will not erupt again.

Detailed explanation-4: -There are three types of volcanoes: cinder cones (also called spatter cones), composite volcanoes (also called stratovolcanoes), and shield volcanoes. Figure 11.22 illustrates the size and shape differences amongst these volcanoes. Shield volcanoes, which get their name from their broad rounded shape, are the largest.