Earth has been recycling liquid water, as solid ice, or as a gas vapour for billions of years. When you drink a glass of water, think who may have tasted it before you. A polar bear, a brontosaurus, a Viking, farm animals, or an ancient city dweller? Water Cycle The water hydrolic cycle describes the circulation of the planet’s water.
Eddy Jackson | Editor | Communicationuk streaming multimedia narratives | Digital Learning Services