The rift valley along a mid-ocean ridge marks?

A a boundary between two plates.


B a region where subduction is occurring.


C a region where a deep-sea trench is forming.


D a boundary between oceanic and continental crust.The rift valley along a mid-ocean ridge marks?
A. a boundary between two plates.





A rift valley is a valley caused by two tectonic plates slowly sliding away from each other. ( the opposite of a rift valley is B. subduction, an example being a mountain chain caused by two tectonic plates colliding with each other.)





Hope it helps you ! :-)The rift valley along a mid-ocean ridge marks?
a