How much of earth's freshwater is found underground?
2%
70%
87%
30%

The correct answer is - 30%

The freshwater is very obscure on the planet when compared to the amount of saline water, with the freshwater only representing around 3% of the total water on the planet.

Out of those 3%, the majority is actually frozen water in the ice caps and glaciers, accounting for 68.7%. The groundwater is the second with the highest reserves, accounting for 30.1%, while the surface waters are only accounting for 0.3%, and other sources with 0.9%.