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oceanic trenches and volcanoes from the rising magma.

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Is a process by which ocean floors spread laterally from crests of main ocean ridges?

Sea floor spreading


What is the name of the theory that explains how forces deep within earth can cause ocean floors to spread and continent to move?

Theory of plate tectonics explains how forces deep within earth can cause ocean floors to spread and continents to move


What is the name of the theory that explains how forces within the earth can cause ocean floor to spread and continents to move?

Theory of plate tectonics explains how forces deep within earth can cause ocean floors to spread and continents to move


How many magama are in the ocean?

The ocean floors are largely made of magma.


How many volcanoes are on the ocean floors?

2,00000


What is the name of the theory that explains how forces deep within earth can cause floors to spread and continents to move?

Theory of plate tectonics explains how forces deep within earth can cause ocean floors to spread and continents to move


What is bathymetery?

is the study of underwater depth of lake or ocean floors.


What extrusive igneous rock is found on ocean floors?

Basalt


What are found over the continents and also on the ocean floors?

Volcano's


What is the major cause of the distribution of sediments on the ocean floors of the world?

the temperature of the water in the upper layers of the ocean


What is most of the floor of the North Pacific Ocean covered with?

Biogenous are dominant on deep-ocean floors.


Which two ocean floors became part of the land bridge between Asia and north America?

The Atlantic Ocean and the Pacific Ocean. :)