Water resources include water contained in oceans and seas.

The statement is - False.

The water resources are referring to the fresh water on our planet, not on all water on the planet. Since the oceans and seas are filled with saline waters, than they are not included into the water resources. The water resources are found in the rivers, streams, freshwater lakes, some of underground waters, because these are containing freshwater that can be used for drinking by the people. Unfortunately, the freshwater is in much smaller amount than all the other types of waters, so we should be very careful and protective of this resource that means life.