A curved line of volcanic islands spaced about 80 kilometres apart along the edge of one plate where two oceanic plates meet is called a(n)________.
A)hot spot track
B)oceanic volcanic rift zone
C)volcanic island arc
D)subsided and failed continental rift

Question

Quizplus · Accepted Answer

A curved line of volcanic islands spaced about 80 kilometres apart along the edge of one plate where two oceanic plates meet is called a volcanic island arc. This is formed when one oceanic plate is forced beneath another in a process known as subduction. The magma rises to the surface and forms a chain of volcanic islands, such as the Aleutian Islands or the Caribbean Islands. A hot spot track is a chain of volcanoes that forms over a fixed magma source, like the Hawaiian Islands. An oceanic volcanic rift zone is a region of volcanic activity where tectonic plates are diverging. A subsided and failed continental rift is a region where a rift formed in the continental crust but failed to continue spreading and forming an ocean basin.

A Curved Line of Volcanic Islands Spaced About 80 Kilometres