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Exam 8: Air Masses

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Question 1

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Name two source regions for Maritime Tropical air masses.

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Caribbean ...

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Question 2

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The ________ air mass provides much of the moisture for precipitation in the central and eastern United States.

A) cP
B) cT
C) mP
D) mT

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Question 3

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Maritime tropical (mT)air masses are the most important source of moisture along the Pacific Coast.

Characteristics of an air mass source region include:

The ________ air mass may produce an occasional "nor'easter" in the winter.

Which air mass causes occasional drought to the southern Great Plains of the United States?

Why are maritime air masses from the north Atlantic of only limited concern for weather in the U.S.?

Most of the precipitation for the region east of the Rocky Mountains comes from:

The symbol used when classifying Maritime Polar air masses is MP.

Lake-effect snowfall is created as a direct result of air mass modification.

Which of the following is not an air mass that influences North America?

What is the air mass type and source region for "nor'easters"?

In North America the ________ air mass forms only in the summer.

Air masses are identified by two-letter codes.

An air mass is an immense body of air characterized by homogeneous temperature and moisture content.

Maritime Arctic air masses do not form very often.

Why is Maritime Arctic left out of the air-mass classifications?

mP air masses over the northeastern United States produce stable,clear skies in the summer and heavy snowstorms in the winter.

The stormy winter weather associated with an invasion of mP air from the Atlantic into an area east of the Appalachians and north of Cape Hatteras is known as a nor'easter.

Continental polar air masses do not form in the summer in North America.