The process by which the ocean floor sinks into the mantle is called subduction 10.
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The strips of paper represent oceanic crust or seafloor.
It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary.
This is a mid ocean ridge.
1 what feature of the ocean floor is shown at a.
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The feature on the ocean floor at c is called a n ocean trench 8.
Seafloor spreading is the creation of new seafloor or new oceanic crust 5.
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Seafloor spreading is happening at b.
The process that continually adds new material to the ocean floor is called sea floor spreading 9.
2 describe the process shown occurring at b and explain what results from this.
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3 what happens to old oceanic crust as new molten material rises from the mantle.
A chain of underwater mountains along which sea floor spreading occurs is a mid ocean ridge.
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4 the arrows on the figure show the ocean.
This creates new ocean crust.
The oldest sections should be the sections on both sides furthest from the middle 4.
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Sea floor spreading worksheet use the figure above to answer the following questions.
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Molten rock pushes up from the asthenosphere and pushes the plates apart at the mid ocean ridge.
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The earth does not get bigger.
