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| 1 . |
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An immense body of air, characterized by homogeneous physical properties is called a(n) __________.
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| 2 . |
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The air mass most likely to produce thunderstorms would be a __________ air mass.
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| 3 . |
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The classification of an air mass depends upon __________.
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| 4 . |
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Most precipitation east of the Rocky Mountains comes from __________ air masses.
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| 5 . |
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During the winter, __________ air masses usually begin as cP air in Siberia.
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| 6 . |
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An air mass moving from the Gulf of Mexico northward over the United States in winter would most likely be labeled a __________.
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| 7 . |
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When a region has several consecutive days of rather constant weather, it is experiencing __________ weather.
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| 8 . |
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Which one of the following is NOT an air mass likely to influence the weather of North America?
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| 9 . |
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An __________ air mass may produce an occasional nor'easter during the winter, but summertime incursions of this air often bring pleasant weather.
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| 10 . |
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If an air mass is colder than the surface over which it is moving, the __________.
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| 11 . |
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This air mass is most associated with lake-effect snow.
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| 12 . |
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In North America, this hot, dry air mass only occurs in the summer.
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Answer choices in this exercise are randomized and will appear in a different order each time the page is loaded.
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