1 In recent years, the U.S. has seen a number of winter storms that have caused surprisâ¦. 2  The Periodic Table of Elements Life is sustained by a number of chemical elements. 3  They are responsible for the birth of planets and the evolution of cells to complex organisms.
Water distribution on Earth - Distribution of saline and fresh water. 1  The total volume of water on Earth is estimated at 1.386 billion kmÂ³ (333 million cubic miles), with 97.5% being salt water and 2.5% being fresh water. 2  The total volume of water in rivers is estimated at 2,120 kmÂ³ (510 cubic miles), or 2% of the surface fresh water on Earth.
About 97 percent of Earth's water is in the ocean. The ocean covers more than 70 percent of the surface of our planet. It's hard to imagine, but about 97 percent of the Earth's water can be found in our oceans. Of the tiny percentage that's not in the ocean, about two percent is frozen up in glaciers and ice caps.Less than one percent of all the water on Earth is fresh.A tiny fraction of water exists as water vapor in our atmosphere. According to the U.S. Geological Survey, there are over.f the tiny percentage that's not in the ocean, about two percent is frozen up in glaciers and ice caps. Less than one percent of all the water on Earth is fresh. A tiny fraction of water exists as water vapor in our atmosphere.