Moving from an oceanic ridge to an oceanic trench, the thickness of the lithosphere:
A)decreases in proportion to the distance.
B)is unrelated to the distance from the ridge.
C)increases in proportion to the distance.
D)randomly varies.
E)remains the same.

Question

Quizplus · Accepted Answer

As one moves away from an oceanic ridge towards an oceanic trench, the lithosphere, which is newly formed at the ridge, cools and becomes denser. This process increases its thickness in proportion to the distance from the ridge, where it was formed.

Moving from an Oceanic Ridge to an Oceanic Trench, the Thickness