I think D, because it talks about prompting more people to migrate.
I think it is the Atacama desert.
The rotating loops of currents that occur in the ocean are referred to as gyres.
About 70% of the Earth's freshwater is found in the form of ice caps and glaciers -it is frozen. Out of this, the majority is actually in one place: covering the continent of Antarctica.
One could argue that there is
more water in the oceans, but it's not fresh water- it's salty water, so it's not good to drink.
