What is the largest are in canada and the united states that is densely populated (over 250 people per square mile)? what four cities in that area

The northeastern coast of the US is the largest area in Canada and the United States that is densely populated with over 250 people per square mile. Boston, New York, Philadelphia and Washington are located in this area.

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states grant a variety of local governments power to meet residents’ needs (source: apex learning). hope this !

permafrost layer, it exists beneath a layer of soil, rock or sediment.