Chapter 11 Part 1 Flashcards
weather
day to day fulctuations of the atmosphere in some location
climate
long-term aggregate of weather patterns in a region
4 elements that compose the atmosphere
nitrogen gas, oxygen gas, argon, carbon dioxide
% of nitrogen gas
78
% of oxygen gas
21
% of argon
1
% of carbon dioxide
0.039
air is a ______ of gases
mixture
variable components of the atmosphere
water vapor, aerosols, ozone
water vapor
- as much as 4% of air volume (temperature dependent)
- absorbs heat energy from Earth
- greenhouse gas
aerosols
- tiny solid and liquid particles that are suspended in the atmosphere
- reflect/scatter light from the sun
- act as surfaces where water vapor can condense
ozone location is (uniform/not uniform)?
not uniform
dominant location of ozone
stratosphere
how is ozone created?
when single atom of oxygen and molecule of oxygen collinde in the presence of a third, neutral molecule that acts as a catalyst
Atmospheric pressure
the weight of air over some area
atmospheric pressure at sea level
<1000 millibars
14.7 lbs/in^2
Pressure _______ as altitude _____
decreases, increases
1/2 of the atmosphere by mass is found within
3.5 miles (5.6 km) of sea level
90% of the atmosphere is within
10 miles (16 km)
chloroflourocarbons
most significant of the offending chemicals to the ozone layer
troposphere
- bottom layer we live in
- temperature decreases with an increase in altitude
- region where air “turns over”