Which processes are important in the formation of volcanic arcs at the edge of continental plates? Select the two correct answers.(1 point)

Question

Responses

uplift
uplift

subduction
subduction

passing over a hotspot
passing over a hotspot

plate divergence

Answer 1

The two important processes in the formation of volcanic arcs at the edge of continental plates are:

1. Subduction: This occurs when one tectonic plate is forced beneath another, leading to melting of the subducting plate and the formation of magma, which can result in volcanic activity.

2. Uplift: This can occur as a result of tectonic processes including subduction, contributing to the formation of mountain ranges and volcanic arcs.

The other options, "passing over a hotspot" and "plate divergence," are not primarily associated with the formation of volcanic arcs at the edge of continental plates. Passing over a hotspot typically creates volcanic activity away from plate boundaries, while plate divergence generally leads to the formation of mid-ocean ridges rather than volcanic arcs.