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Atmosphere Foundations


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Atmosphere
the envelope of gases surrounding the earth or another planet
Pressure
the weight of the air in the Earth's atmosphere
Gas Law
the volume of a gas at constant temperature varies inversely with the pressure exerted on it
Absolute Zero
lowest temperature possible
Carbon Dioxide
a colorless, odorless gas produced by burning carbon and organic compounds and by respiration
Density
the degree of compactness of a substance
Water Vapor
water in a vaporous form especially when below boiling temperature and diffused
Kinetic Energy
energy associated with motion
Nitrogen
a colorless tasteless odorless element that as a diatomic gas is relatively inert and constitutes 78 percent of the atmosphere
Oxygen
a reactive element that is found in water, in most rocks and minerals, in numerous organic compounds, and as a colorless tasteless odorless diatomic gas constituting 21 percent of the atmosphere
Oxides of Nitrogen
a mixture of gases that are composed of nitrogen and oxygen
Ozone
a triatomic very reactive form of oxygen that is a bluish irritating gas of pungent odor
Ozone Layer
a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation
Ozone Hole
n area of the ozone layer where there is very little ozone
Troposphere
the lowest densest part of the earth's atmosphere in which most weather changes occur and temperature generally decreases rapidly with altitude and which extends from the earth's surface to the bottom of the stratosphere
Tropopause
the interface between the troposphere and the stratosphere
Mesosphere
the part of the earth's atmosphere between the stratosphere and the thermosphere in which temperature decreases with altitude to the atmosphere's absolute minimum
Mesopause
the upper boundary of the mesosphere where the temperature of the atmosphere reaches its lowest point
Thermosphere
the region of the atmosphere above the mesosphere and below the height at which the atmosphere ceases to have the properties of a continuous medium
Particulates
relating to minute separate particles
Aerosol
a colloidal suspension of particles dispersed in air or gas
Stratosphere
the layer of the earth's atmosphere above the troposphere
Stratopause
the interface between the stratosphere and the ionosphere
Ionosphere
the part of the earth's atmosphere in which ionization of atmospheric gases affects the propagation of radio waves