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6 Cards in this Set

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name two ways in which carbon dioxide is added to the atmosphere
1. We exhale carbon dioxide
2. The burning of fossil fuels
What is water vapor?
Water- vapor is water in the form of gas. it is invisible
What is density? state the formula.
density is the amount of mass in a given volume.
density= mass/volume
What is altitude?
Altitude is the distance above sea level, the average level of the surface of the oceans. Air pressure decreases as altitude increases. As air pressure decreases so does density.
What is air pressure measured in?
inches of mercury or inches
or millibars
Why is it so hot in the thermosphere?
because tht is where the layer of atmosphere that first takes the suns energy.