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Law of conservation of matter principle of mass conservation, states that for any system closed to all transfers of matter and energy (both of which have mass), the mass of the system must remain constant over time, as system mass cannot change quantity if it is not added or removed.
convection the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
primary pollutants a pollutant which is emitted directly into the air.
secondary pollutants What comes out of primary pollutants.
ozone colorless unstable toxic gas with a pungent odor and powerful oxidizing properties.
smog fog or haze combined with smoke.
photochemical caused by the chemical action of light.
volatile organic compound Volatile organic compounds (VOCs) are organic chemicals that have a high vapor pressure at ordinary room temperature.
Theory A supposition or a system of ideas intended to explain something.
Climate The weather conditions prevailing in an area in general or over a long period.
Created by: Benjamin.Kielley