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Air Canada - Wikipedia
Air Canada is the flag carrier and the largest airline of Canada by fleet size and passengers carried. Air Canada maintains its headquarters in the borough ...
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CBP Traveler Entry Forms | U.S. Customs and Border Protection
May 21, 2018 — Whether you are a visitor to the United States or a U.S. citizen arriving in the United States, you must complete one or more entry forms.
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Air masses
Such air masses often plunge southward across Canada and the USA during winter, but very rarely form during the summer because the sun warms the Arctic.
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