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- 1. Multiple Choice
The map of North America shows the source region of an air mass forming mostly over Mexico. This air mass originating over Mexico is classified as
continental polar
continental tropical
maritime polar
maritime tropical
- 2. Multiple Choice
An air mass entering Alaska from the northern Pacific Ocean would most likely be labeled on a weather map as
cT
cP
mT
mP
- 3. Multiple Choice
Base your answer on the map, which shows the position of the jet stream relative to two air masses and a low-pressure center (L) over the United States. What is the difference in the air temperature and humidity between the cP and mT air masses?
The cP air mass is warmer and less humid.
The cP air mass is colder and more humid.
The mT air mass is warmer and more humid
The mT air mass is colder and less humid.
- 4. Multiple Choice
Which geographic region is the most common source region for the mT air masses that move into New York State?
northern Canada
Arctic Ocean
southwestern United States
Gulf of Mexico
- 5. Multiple Choice
Air masses are identified on the basis of temperature and
type of precipitation
wind velocity
moisture content
atmospheric transparency
- 6. Multiple Choice
Which type of air mass is associated with warm, dry atmospheric conditions?
cP
cT
mP
mT
- 7. Multiple Choice
Which type of air mass usually contains the most moisture?
mT
mP
cT
cP
- 8. Multiple Choice
Which type of air mass would most likely have low humidity and high air temperature?
cT
cP
mT
mP
- 9. Multiple Choice
The weather characteristics of air mass result primarily from its
geographic origin
size and shape
rate of movement
direction of movement
- 10. Multiple Choice
Tornadoes occur when a very cold, dry air mass meets a very warm, wet air mass. Which two air masses would most likely form a tornado when they meet?
cP and cA
cT and mP
cP and mT
mP and mT
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