The crests of mid- oceanic ridges______ .
A) are geologically old features
B) lie at depths exceeding 6 kilometers
C) contain active rift zones
D) are heavily mantled with sediment

Question

Quizplus · Accepted Answer

Mid-oceanic ridges are divergent plate boundaries where new oceanic crust is formed. The crests of these ridges contain active rift zones where magma rises to the surface and solidifies, adding new crustal material.

The Crests of Mid- Oceanic Ridges______