PROCESSES OF THE HYDROLOGICAL CYCLE
transpiration evaporation water is stored in the seas as a liquid. high temperature and warm winds change liquid water into a gas (water vapour) which rises into the atmosphere. evaporation involves the change in the state of moisture form or liquid form (water) to the gaseous state (water vapour) the radiant energy provided by the sun causes the molecules of water in the liquid form to move about more rapidly. these activated molecules eventually move fast enough to break free from the liquid surface and pass to the atmosphere in the gaseous state. in doing so they take with them their energy of molecular motion called kinetic energy. the temperature of the remaining liquid is lowered by the removal of energy and it may be considered as a cooling process. each year some 360000km 3 of water is evaporated from the oceans and seas into the atmosphere evaporation rate depend on temperature relative humidity: the ability of water to accept water vapour wind speed vegetation : evapo...