One environmental problem affecting the supply of fresh water is that groundwater is being pumped from aquifers
<span>As water in the oceans cools down, it tends to Sink
b)Sink
Because when water becomes warm due to the heat of the sun it floats to the surface of the ocean and cool water is in the bottom</span>
Hello there. :)
<span>The set of countries with the greatest population densities are
</span><span>Germany, Italy, England</span>
Air mass, letter a is the correct one