Evaporation is the process
of a liquid turning into a vapor or gas. This occurs when the surface
of the liquid absorbs enough energy to change into a vapor. Evaporation
occurs in many places. One of the most common is a puddle of water that
has formed on a sidewalk. The more energy the water receives from the
sun, the faster evaporation will take
place.
Below we see a simulation of this process.
Evaporation
is part of the water
cycle. This is one of the ways that water gets into the atmosphere.
About 80% of all evaporation isfrom
the surface of oceans. The remainder is from inland water, soil, vegatation
and even from your skin. Only the water evaporates.
This means that the mud in puddles, salt in the ocean, and pollutants stay
on the surface of the Earth. Only pure water turns into water vapor. Thats
not to say that the condensation nuclei is not a pollutant.