Geography, 21.01.2020 11:31 dg12300

Which of the following best summarizes the change in the sea floor over time?

the sea floor is constantly shrinking as plates dive under the continental land masses.
the sea floor is constantly expanding as new magma comes up through the surface.
the sea floor expanded for a period in the past and then shrank when the continents were formed.
the sea floor has not changed in size but has accumulated more layers due to sedimentation.

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Which of the following best summarizes the change in the sea floor over time?

the sea f...