Answer:
Differences in water density drive deep water currents.
Explanation:
Deep ocean currents (also known as Thermohaline Circulation) are caused by: The sinking and transport of large masses of cool water gives rise to the thermohaline circulation, which is driven by <u>density </u>gradients due to variations in temperature and salinity.
This answer is true, I had it on my health exam last year
Answer:
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Federalism is a government in which powers are divided between state governments and a federal government