Up to 70% of the world’s freshwater can be found in the
a.
great artesian basin
b.
great barrier reef
c.
geothermal plateaus of new zealand
d.
ice caps of antarctica

The right option is; D. ice caps of Antarctica

Up to 70% of the world’s freshwater can be found in the ice caps of Antarctica.

The ice sheet of Antarctic is the biggest single mass of ice on the earth surface. It is composed of 30 million cubic km of ice and it extends over an area of almost 14 million square km. The ice cap of Antarctic holds about 70 percent of the fresh water on the earth's surface. Through frost and snow, ice enters the sheet and leaves by melting and breaking of icebergs usually at the bottom.

this is a good question! i'll do some research and come back when i have the answer!