Carbon Monoxide (n) - a pollutant that is produced primarily by motor vehicles. It can reduce a person's ability to think clearly, and causes visual impairment and headaches if high enough concentrations are experienced for a long period of time.
Chemistry (n) ? the science of the
composition, structure, properties and reactions of matter.
Chlorofluorocarbons (n) - CFCs Chlorofluorocarbons are various compounds used as aerosol propellants, solvents, and refrigerants. Such compounds when released into the atmosphere contribute to the breakdown of the stratospheric ozone layer which shields the earth?s surface from dangerous solar ultraviolet radiation.
Climate (n) ? the average course of
weather based on temperature, wind and precipitation for a region.
Clouds (n) - A visible
body of fine droplets of water dispersed in the atmosphere
above the earth's surface.
Compost (n) ? a mixture of
decomposing organic material (such as leaves and vegetables) that is
used as a fertilizer.
Condense (v) ? to change a vapor into
Condensation (n) ? the process of
changing a vapor into a liquid.
Conservation (n) ? the process of
using or managing a natural resource to prevent its waste, harm or