Social Studies
niccapoo
52

what are three physical features that form boundaries of the mainland United States

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(2) Answers
Torres48

i have two for you, we have boarders and other continents

Kirbz03

The Great Lakes form the boundary between the US and Canada. The Rio Grande forms a big part of the boundary between Mexico and the US. And I guess the oceans form yet another boundary, defining our country.

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