Slabs of ocean floor return to the mantle in subduction zones.Description<span>
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Answer:
According to Google, Nunavut has the lowest population density in Canada. This might occur because it's made up of islands and the area is a tundra so it's very cold and doesn't support agriculture. The islands are also accessible only by plane or boat so it's hard for people to move to the area.
Explanation:
Ir is the third opinion, 100km area
