Answer:
C. Occurs where a plate is moving down.
Explanation:
Ocean trenches are steep depressions in the deepest parts of the ocean where old ocean crust from one tectonic plate is pushed beneath another plate, raising mountains, causing earthquakes, and forming volcanoes on the seafloor and on land.
Please mark as Brainliest! :)
Answer:
Hello!!! Princess Sakura here ^^
Explanation:
They are called isotopes.
