Within the sea floor,the rate of heat flow is greatest ____________.
A) along mid-ocean ridges
B) along fracture zones
C) at the edges of ocean basins
D) in the center of abyssal plains

Question

Quizplus · Accepted Answer

Along mid-ocean ridges, new oceanic crust is being formed through volcanic activity. This process involves the release of large amounts of heat, resulting in a high rate of heat flow. As the new crust moves away from the ridge axis, it begins to cool and the rate of heat flow decreases. Fracture zones and edges of ocean basins also experience some volcanic activity and heat flow, but not to the extent of mid-ocean ridges. The center of abyssal plains, on the other hand, has relatively low heat flow due to the absence of volcanic activity.

Within the Sea Floor,the Rate of Heat Flow Is Greatest