<span>Well, I'm pretty sure there are four. The northern and southern hemispheres, and then the eastern and western hemispheres.</span>
The answer is tectonic plates
[Density]
Density determines waters vertical position in the ocean using temperature and salinity. Lower temperature waters are more denser than higher temperature waters. Also, low salinity waters are lower density than higher salinity waters
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Best Regards,
Wolfyy :)
the answer to this question is letter A