Question

What can you conclude about the oceanic crust in the image? 

A. It's denser than the continental crust.  B. It sits at a higher elevation than the continental crust.  C. It exerts no upward force on the continental crust.  D. It's composed mostly of granitic rock.

Answer 1

Answer: Option (A)

Explanation: In the picture given below, we could see two plates colliding one another. The denser oceanic plate is getting subducted beneath the other and there occurs a trench which lies relatively at a lower elevation than the continental crust.

The oceanic crust usually is composed of basalt and it does not exert any upward force towards the continental crust.