Water is found in most natural sources including rivers,glaciers,lakes and the ocean. The water cycle is the cycle of water on and below the earth the cycle includes: Evaporation, condensation, advection, then going onto precipitation
Evaporation= liquid into gas phase
Condensation=the water vapour is now liquid again and are now clouds, the condensation clouds can cause precipitation which is the main route water returns
Advection= also helps precipitation, without advection precipitation couldbt happen.