Comp and Structure
Air Masses
Fronts and Storms
Predicting Weather
Air Quality
100
This is the most abundant gas in the atmosphere.
What is nitrogen
100
Low pressure systems are usually associated with this kind of weather.
What is cloudy and rainy.
100
The phenomenon in which the effects of cold air are worsened by wind is called this.
What is the wind chill factor.
100
Where do all the water droplets come from to make a cloud?
What is condensation of water vapor
100
The primary source of acid rain comes from this action.
What is burning fossil fuels.
200
This layer of the atmosphere is where most important weather phenomena occur.
What is troposphere.
200
Warm air rises; Expands due to low presure; Air _________ until it reaches the dew point; Condensation occurs and a cloud forms
What is cools
200
The primary cause of wind is this.
What is unequal heating of the Earth's atmosphere.
200
Condensation occurs when the temperature of the atmosphere reaches this point...
What is the dew point.
200
This process is most likely to remove pollutants from the air.
What is precipitation
300
As a balloon rises in the atmosphere, it expands for this reason...
What is the air pressure is lower further up in the atmosphere allowing the balloon to expand.
300
An air mass moving from the south (tropics) across the continent of America is called this.
What is a Continental Tropical
300
An example of an air mass that is close to saturation might have this temperature and this dew point.
What are (two numbers close together).
300
Lines on a map that connect points of equal or constant pressure are called these...
What are isobars.
300
Human activities that impact air quality include these.....
What is (Answers vary, industrial byproducts, over farming, burning, etc. Answers should NOT include activities that affect only water.)
400
This layer of the atmosphere is the hottest.
What is the thermosphere
400
Air mass over the continental United States usually move in this direction.
What is from west to east.
400
Storms in the Atlantic Ocean typically move this way (or hit these areas)...
What is northwest, hitting Central America or the southern and eastern coasts of the United States.
400
The change in wave frequency of energy as it moves toward or away from an observer is this...
What is the Doppler effect
400
Chlorofluorocarbons were banned because they can do this.
What is break down the ozone layer.
500
The pressure of the mesosphere is this... (See chart) 
What is 0mb
500
In orographic lifting, clouds form when moist winds do this...
What is are forced to rise over a mountain.
500
A storm surge typically forms on this side of a hurricane.
What is east or northeast. (The low pressure systems will push water in a counter-clockwise direction.)
500
The lowest wind speed is indicated on a map of isobars with the lines...
What is furthest apart.
500
Acid rain is caused by a combination of water, nitrogen oxide and this.
What is sulfur dioxide.