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It is varied and includes features such as submarine canyons, atolls, and mid-ocean ridges.
The ocean floor generally consists of basalt cooled from magma, and the overlying layers of sediment, both inorganic and organic.
The rotation of Earth causes the apparent path of ocean currents to curve
piles of basaltic lava flows built up from the ocean floor by multiple, summit and flank eruptions
A conditional statement
The Okefenokee Basin may have been formed when a bay of the Atlantic Ocean was cut off from the ocean by a barrier island.
ocean-floor spreading
A conditional statement.
They became culturally different from one another.
primary
None of them.
2 the ratio