The Air You Breathe
Air Pollution
Altitude
and
Air Pressure
Layers
Random
100
What are the two main gases in dry air?
Nitrogen and oxygen
100
What is acid rain?
Precipitation that is more acidic than usual
100
What is altitude?
The distance above sea level
100
What is the lowest layer of earth's atmosphere?
The Troposphere
100
What does a carbon monoxide detector do?
It sounds an alarm when gas is present
200
What is a carbon dioxide molecule made of?
one carbon atom, two oxygen atoms
200
What are seven examples of indoor air pollutants?
Dust,Pet hair,Air freshners,Asbestos,Glues,Oil-based paint,and Cleaning supplies
200
Where is air pressure greatest?
At sea level
200
What is the outermost layer of earth's atmosphere?
The Exosphere
200
What does the word "aneroid" mean?
"without liquid"
300
What percent of the earth's air is oxygen?
21%
300
What are the major sources of photochemical smog? Hint: There are 2.
The gases emitted by automobiles and trucks
300
Why is harder to breathe air at higher altitudes?
As altitude increases, air pressure and air density decrease, so there are fewer oxygen molecules in each cubic meter
300
In which layer of the atmosphere do meteors burn up?
The Mesosphere
300
"Tropo-" means what?
"turning" or "changing"
400
What percent of the earth's air is nitrogen?
78%
400
What is the ozone layer?
A layer of the upper atmosphere about 30km above earth
400
One inch of mercury equals what in millibars?
33.87 millibars
400
What do the ions in the ionosphere do?
They reflect radio waves back to earth
400
How do you calculate density?
By dividing mass by volume
500
DAILY DOUBLE:What are the "other gases" that make up 1% of the gases in our atmosphere? Hint:There are 7.
Argon,Carbon dioxide,Neon,Helium,Methane,Krypton, and Hydrogen
500
What is radon?
A colorless, odorless gas that is radioactive
500
1,016 millibars equals what in inches of mercury? Hint:1 inch of mercury=33.87 millibars
30 inches of mercury
500
DAILY DOUBLE:Which layer has no definate outer limit and starts 80km above earth's surface?
The Thermosphere
500
How much cooler, on average, does the air get for every 1km increase in altitude?
6.5 degrees celcius
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