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TermDefinition
Law of conservation of matter a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system
Primary Pollutants pollutanats formed directly from natural activities and human activities
Secondary Pollutants pollutants formed from primary pollutants
Ozone a form of oxygen, O 3 , with a peculiar odor suggesting that of weak chlorine, produced when an electric spark or ultraviolet light is passed through air or oxygen.
Smog smoke or other atmospheric pollutants combined with fog in an unhealthy or irritating mixture.
Photochemical the branch of chemistry that deals with the chemical action of light.
Volatile Organic Compund A pollutant that reacts with nitrogen oxides to make smog
Theory a coherent group of tested general propositions, commonly regarded as correct, that can be used as principles of explanation and prediction for a class of phenomena: Einstein's theory of relativity. Synonyms: principle, law, doctrine.
Climate the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years.
Created by: Alexander.Kling