12. what canadian city is where lake huron, lake superior, and lake michigan join together?

The Canadian city where lake Huron, Lake Superior, and Lake Michigan join together is the city of Ontario.

Explanation:

The Great lakes that make the largest freshwater system on the Earth are connected by several straits and rivers. The ownership of the lakes is shared between the United States and Canada and thus, they are the only bi-national water body in the world. Along with the eight states of the United States that the Great Lakes form a part of, the city of Ontario is the only Canadian city that the lakes are hosted by.

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