Final answer:
Baffin Island is Canada's second largest island and is located in the territory of Nunavut.
Step-by-step explanation:
The second largest island in Canada is Baffin Island. It is located in the territory of Nunavut, and it has an area of approximately 507,451 square kilometers. Amundsen Gulf lies to the west of Baffin Island, and it is an arm of the Beaufort Sea in the Arctic Ocean. The Northwest Passage, a sea route that connects the Atlantic and Pacific Oceans, runs through the northern region of Canada.