<P> The total volume of water on Earth is estimated at 1.386 billion km3 ( 333 million cubic miles ) , with 97.5 % being salt water and 2.5 % being fresh water . Of the fresh water , only 0.3 % is in liquid form on the surface . In addition , the lower mantle of inner earth may hold as much as 5 times more water than all surface water combined ( all oceans , all lakes , all rivers ) . </P>
<P> The total volume of water on Earth is estimated at 1.386 billion km3 ( 333 million cubic miles ) , with 97.5 % being salt water and 2.5 % being fresh water . Of the fresh water , only 0.3 % is in liquid form on the surface . In addition , the lower mantle of inner earth may hold as much as 5 times more water than all surface water combined ( all oceans , all lakes , all rivers ) . </P>
what is the percentage of salt water in the world
what is the percentage of salt water in the world
97.5 %
97.5 %