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By which mechanism does older oceanic rock move at a ridge? Magnetic forces move the rock. Continents drift and move the rock. The ridge subducts and moves the rock. New molten material rises and moves the rock.

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Answer:

it is d the answer is right our welcome

Explanation:

The mechanism by which older oceanic rock move at a ridge is : ( D ) New molten material rises and moves the rock

Oceanic rocks ( crust ) are made up of basalt and gabbro. Oceanic crust is thinner when compared to continental crust because of the continental crust are composed of andesite and granite which are light colored as well.

Older Oceanic rocks are moved at the ridges only when new molten materials are formed and these material rises from the crust causing the older Oceanic rocks to move.

Hence we can conclude that the mechanism by which older oceanic rock move at a ridge is New molten material rises and moves the rock.

Learn more about oceanic rocks : https://brainly.com/question/2188309

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