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History 9 Online
OpenStudy (im.new):

Ocean currents are caused by water's density differences. The density differences in the ocean water are due to different salt concentrations and differences in

OpenStudy (im.new):

A) waves. B) temperature. C) plate tectonics. D) volcanic activity.

OpenStudy (melroseneedshelp):

Try the science columns area. This is History. ☺

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