What is the name of the narrow strait that separates Ellesmere Island from Greenland?

The Nares Strait is the correct name for the narrow body of water that separates Ellesmere Island from Greenland. This strait plays a significant role in the Arctic region, facilitating the movement between two important landmasses. It connects Baffin Bay in the north with the Arctic Ocean to the south, serving as a critical passage for ice and ocean currents.

In addition, the Nares Strait is noteworthy for its historical significance in Arctic exploration and is a vital area for studying climate change impacts on polar ice and ecosystems. Understanding the geographical features like the Nares Strait is essential for grasping the broader dynamics of Arctic geography, including navigation, habitat connectivity for wildlife, and the effects of environmental changes.

The other options refer to different geographical features: M'Clure Strait is located in the Canadian Arctic Archipelago; Bellot Strait connects Prince Regent Inlet to the southeast and is also part of the Arctic Archipelago; Lancaster Sound is situated to the south of Baffin Island and serves as an entrance to the Northwest Passage. Each of these straits is important in its own context but does not separate Ellesmere Island from Greenland.