What makes up most of the atmosphere?
Carbon dioxide
Methane
Hydrogen
Nitrogen and oxygen
What is residence time?
Wind speed
Pressure level
Gas temperature
Time a gas stays in the atmosphere
Which gases trap heat?
Greenhouse gases
Nitrogen
Helium
Oxygen
Why do greenhouse gases trap heat?
They cool air
They absorb infrared radiation
They are heavy
They reflect sunlight
What determines a gas’s ability to absorb heat?
Color
Location
Molecular structure
Size
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