<span>If that same polar air mass moves south from Canada into the southern U.S. it will pick up some of the warmth of the ground, but due to lack of moisture it remains very dry. This is called a continental polar air mass
</span>Continental Polar Air Masses<span>: cold temperatures and little moisture. Those who live in northern portions of the United States expect cold weather during the winter months. </span>
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Answer:
The 1850 Fugitive Slave Act allowed fugitive and freed workers in the north to be captured and enslaved. This made Harriet's job as an Underground Railroad conductor much harder and forced her to lead enslaved people further north to Canada, traveling at night, usually in the spring or fall when the days were shorter.
Explanation: