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Chapter 15

QuestionAnswer
Radiation Energy that travels across distances in the form of certain types of waves.
Conduction The transfer of energy from direct contact.
Convection The transfer of energy from place to place by the motion of gas or liquid.
Troposphere The layer of the atmosphere nearest the earth's surface.
Stratosphere clear, dry layer of the atmosphere above troposphere.
Mesosphere Layer above the Stratosphere with very thin air.
Thermosphere Starts 56 mi. above sea level and gets less dense until it turns into space.
Atmosphere A whole layer of air that surrounds Earth.
Altitude Distance above sea level.
Density The amount of mass in a given volume of a substance.
Cycles Processes that repeat over and over again.
The Carbon cycle Carbon dioxide and oxygen gases constantly cycle among plants, animls, and the atmosphere.
The Nitrogen cycle Different forms of Nitrogen cycle among the atmosphere , the soil, and living organisms.
The Water cycle Different forms of water cycle through the earth's atmosphere and surface.
Ozone molecule (O3) Made of three atoms of of the element oxygen.
Ultraviolet radiation Radiation that has too much energy to see.
Infrared radiation Radiation that has too little energy to see.
Greenhouse effect Gasses absorbing and emiting infrared radiation.
Greenhouse gasses Carbon dioxide, methane, water vapor, nitrous oxide, and other gasses that absorb and give of infrared radiation.
Air pollution Smoke and other harmful materials that are added to the air.
Particulates Tiny particles or droplets that are mixed in with the air.
Fossil Fuels Fuels formed from the remains of prehistoric animals and plants.
Smog The combination of smoke and fog.
Greenhouse gasses from human activities Carbon dioxide (CO2), Methane (CH4), Nitrous oxide (N2O)
Created by: howard_willard
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