EARTH'S ATMOSPHERE
LAYERS OF THE ATMOSPHERE
AIR QUALITY
AIR PRESSURE
MISC.
100
the most abundant gas in the atmosphere
nitrogen
100
the layer where weather is found
troposphere
100

the types of pollution 

land, water, air

100

the space around us, we are surrounded by lots of tiny and invisible air particles, which are constantly moving

Air 

100
amount of mass in a given volume is this
density
200
the gas that makes up about 21% of the atmosphere
oxygen
200
where the ozone layer is found
stratosphere
200
Harmful substances in air, water, or soil
pollutants
200
instrument that measures air pressure
barometer
200
this is the distance above sea level
altitude
300
excess of this gas contributes to global warming
carbon dioxide
300
the "hot layer" of the atmosphere
thermosphere
300

Contamination of the indoor or outdoor environment by any chemical or physical agents that change the natural characteristics of the atmosphere

Air pollution 

300
this happens to air pressure as altitude increases
decreases
300
this is also known as Northern lights
aurora borealis
400
gas in the atmosphere that varies from place to place
oxygen
400
the layer of electrically charged particles
ionosphere
400

states are responsible for making sure that the laws are met.

Clean Air Act

400
as the density of air increases, the air pressure does this
decreases
400
this is made up of 3 atoms of oxygen
ozone
500
condition of the earth's atmosphere at a particular time and place
weather
500
the thickest layer of the atmosphere
thermosphere
500

the 5 air quality ratings 

good, moderate, unhealthy for sensitive groups, unhealthy, very unhealthy

500

air has mass, it also exerts pressure, called air pressure

atmospheric pressure

500
gaseous form of H2O
water vapor
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