WATER ON EARTH.
Water is an important item in our universe. We need water for transport (lakes and oceans), Generation of power, (hydroelectricity), drinking industrial processes, manufacturing and cooling among others.
Very little of the world’s water is fresh (2.6%).
Most of it (97.4%) is in oceans.
Most of the fresh water is frozen (76%). Only a tiny fraction is available for human use, about 0.01%.