Question 8 (1 point)

Question

Why does oceanic crust subduct under continental crust?

subduction zone with resulting volcano | Subduction zone, Subduction, Earth and space science

a
Continental crust are more porous, which allows it to absorb the water in the oceanic crust
b
Oceanic crust is made of magnetic metals and are being attracted to the Core of the Earth.
c
Oceanic crust moves slower than continental crust, so Continental crust overtakes it.
d
Oceanic crust is denser than continental crust and therefore sinks with gravity

Answer 1

The correct answer is:

d. Oceanic crust is denser than continental crust and therefore sinks with gravity.

In subduction zones, the denser oceanic crust is forced under the less dense continental crust due to gravitational forces, leading to the formation of features such as deep ocean trenches and volcanic arcs.