Author Question: ____________________ air masses seldom hit the United States, but can break low-temperature records ... (Read 15 times)

bobthebuilder

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___________________ _ air masses seldom hit the United States, but can break low-temperature records when they do.
 Fill in the blank(s) with correct word

Question 2

____________________ ___________________ _ air masses often form over northern mainland Canada.
 Fill in the blank(s) with correct word



ynlevi

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Answer to Question 1

Arctic

Answer to Question 2

Continental polar



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