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Harry Hess
Stalagmites.
His hypothesis was continental drift and the sea floor spreading. He helped discover the 7 major plates and large unknown amounts of minor plates. Our plates drift 2 cm a year.
An oceanic trench is formed. Divergent boundaries pull away from each other, forming a cavern in the ocean floor. The Marianas Trench is a good example of a divergent boundary.
A mid-ocean ridge is formed along a line created by sea floor spreading. It usually consists of parallel mountain ranges separated by a valley. Sea floor spreading is the result of plate tectonics, where two crustal plates are moving apart. The ridge is formed along lines of the weakest points between the two plates.
Trench
he discover sea floor spreading
what other ocean floor feature is fromed by movement of earth's plates
hello
rift valley
what other ocean floor feature is fromed by movement of earth's plates
Mountains
The prominent sea floor feature found in the central Atlantic ocean is called the Mid Atlantic Ridge.
he pooped on the floor and ran and pee
yes
Oceanic ridge
the mantle