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24 Cards in this Set
- Front
- Back
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The pressure exerted by the weight of the atmosphere at a given altitude.
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Atmospheric Pressure
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The region of Earth's atmosphere that extends from sea level up to about 10 km
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Troposphere
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The region of Earth's atmosphere that extends from the troposphere to an altitude of about 50 km
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Stratosphere
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The stratospheric layer of gaseous ozone (O3) that protects life on Earth by filtering out most of the harmful ultraviolet radiation emitted by the sun.
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Ozone Layer
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1 part out of every million parts (1 ppm)
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Parts per million
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1 part out of every billion parts (1ppb)
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Parts per billion
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Conversion of atmospheric nitrogen into soluble nitrogen compounds available as plant nutrients.
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Nitrogen fixation
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The gases of periodic table group 8A; helium, neon, argon, krypton, xenon, and radon; long and thought to be completely unreactive. They are colorless and exist as single atoms at room temperature.
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Noble Gases
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Pollution that is attributable to human activity.
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Anthropogenic pollution
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Hydrocarbons
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Compounds that contain only carbon and hydrogen atoms, such as methane (CH4)
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An atom or group of atoms that is positively (a cation) or negatively (an anion) charged
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Ion
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Solid particles and liquid droplets suspended int he atmosphere
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Particulates
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Tiny pollutant particles, so small that they remain suspended int eh atmosphere for long periods.
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Aerosols
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An atmospheric condition in which warmer air is on top of cooler air
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Thermal inversion
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Smog generally caused by industrial activity such as coal burning; also known as London smog.
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Industrial smog
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Smog formed by the action of sunlight on photoreactive pollutants in the air.
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Photochemical smog
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Pollutants formed by chemical reactions in the atmosphere
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Secondary Pollutants
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Pollutants emitted directly into the atmosphere
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Primary pollutants
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Decomposition of a reactant, casued by the energy of light
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Photodissociation
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A species that has one or more unpaired electrons
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Free Radical
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Different molecular forms fo the same element; ni this case the two molecular forms are diatomic O2 and triatomic O3.
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Allotropes
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Combustion in which there is insufficient oxygen for complete combustion
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Incomplete combustion
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The rapid combination of a fuel with oxygen the process of burning
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Combustion
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Warming of the Earth above a level that is desirable from a human viewpoint as a result of increased concentrations of one or more greenhouse gases.
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Global Warming
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