Layers
Composition
Masses
Fronts
Weather
100
How is the atmosphere divided into layers?
Temperature
100
What is the most abundant gas in the atmosphere?
Nitrogen
100
What two characteristics of air are used to identify an air mass?
Temperature and Moisture
100
When cold air overtakes warm air and sinks to the surface.
Cold Front
100
True or False: Air moves from areas of High pressure to areas of low pressure.
True
200
Name the four layers of the atmosphere starting at the Earth's surface?
Troposphere, Stratosphere,Mesosphere,Thermosphere
200
What is the percentage of oxygen in the atmosphere?
21%
200
An air mass that forms over the ocean is said to be?
maritime
200
When warm air overtakes cold air and rides over the top.
Warm Front
200
What kind of weather is associated with a Low pressure system?
Stormy
300
Which layer contains the ozone?
Stratosphere
300
Principle of not having too much or too little, but just enough.
Goldilocks Principle
300
Descirbe the following air mass: cT
Continental Tropical - warm and dry
300
When warm air and cold air meet and stall.
stationary front
300
What kind of weather is associated with a High Pressure system?
Fair, sunny
400
Where does all weather take place?
Troposphere
400
What is the effect of heat being trapped by gases in the atmosphere?
Greenhouse effect
400
What causes air to move?
Density, pressure and rotation
400
When warm air is trapped (occluded) above and between two cold air masses.
occluded front
400
In the Northern Hemisphere, low pressure cyclones rotate __________________ _________________.
Counter - clockwise
500
Describe the temperature pattern of each layer as altitude increases.
Troposphere - decrease, Stratosphere - increase, Mesosphere - decrease, Thermosphere - increase
500
What is the main Greenhouse gas?
Carbon Dioxide
500
Describe the following air mass: mP
maritime polar - cold and moist
500
What takes place on a front?
Weather
500
What effect causes winds in the NH to spin to the right, and winds in the SH to spin to the left?
Coriolis effect
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