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What two air masses are most important to the weather of the United States East of the Rocky Mountains?

Please explain your choices.

2 Answers

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  • 1 decade ago
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    Continental Polar and Maritime tropical

    Continental polar affects large areas in the USA and is formed in Canada

    Maritime Tropical also affects large areas in the USA and is formed in the Gulf of Mexico and the Atlantic Ocean

    Source(s): ..
  • 6 years ago

    The air masses are 1.Continental Polar (source region) large areas formed in Canada.

    2.Maritime Tropical (source region) large areas formed in Gulf of Mexico .

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