<P> Water resources are natural resources of water that are potentially useful . Uses of water include agricultural, industrial, household, recreational and environmental activities . All living things require water to grow and reproduce . </P> <P> 97% of the water on the Earth is salt water and only three percent is fresh water; slightly over two thirds of this is frozen in glaciers and polar ice caps . The remaining unfrozen freshwater is found mainly as groundwater, with only a small fraction present above ground or in the air . </P>

How can water be used as a resource