Sense

The amount of water on earth.
Large sphere is the salt water of the sea, the medium sphere sweet water, and the small sphere is accessible for humans. 

5 percent of the water stored on the earth is salt water and the remaining 5 percent is pure water. This 5 percent water is not just underground. This 5 percent of the water is stored in the world in various ways. 5.7 percent of the ice, 5.7 percent in the underground, 5 decimal 5 sweet water!

"Earth's water is mostly saltwater, with only a tiny fraction accessible for humans. Freshwater is locked in ice, underground, and minimal surface sources!"