Question

The image shows the Pacific Ring of Fire, a region of high tectonic activity. What evidence supports the theory that the tectonic activity of the region is due to the subduction of tectonic plates?
Responses
A The region is bound by many oceanic trenches.The region is bound by many oceanic trenches.
B The Asia-Pacific region is dotted by many small and large islands.The Asia-Pacific region is dotted by many small and large islands.
C North America seems to be colliding with Asia at the north of the ring.North America seems to be colliding with Asia at the north of the ring.
D The landmasses look like they would fit together like the pieces of a jigsaw puzzle.

Answer 1

The most relevant evidence supporting the theory that the tectonic activity of the Pacific Ring of Fire is due to the subduction of tectonic plates is:

**A**: The region is bound by many oceanic trenches.

Oceanic trenches are formed at subduction zones where one tectonic plate is being forced under another. The presence of these trenches is a clear indicator of subduction activity, which is a major cause of the tectonic activity observed in the Ring of Fire.