The Water Cycle
The effects of pollution on water cycle
Evaporation
Evaporation is the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure. Evaporation is a fundamental part of the water cycle and is constantly occurring throughout nature.
Condensation
Water that collects as droplets on a cold surface when humid air is in contact with it.
The conversion of a vapor or gas to a liquid.