Which strait separates Umboi Island from New Britain in Papua New Guinea?

What is the name of the peninsula that separates the Sea of Okhotsk from the Pacific Ocean? What canal connects the Red Sea to the Mediterranean Sea? Which strait separates the islands of Java and Sumatra in Indonesia? What canal connects the North Sea to the Baltic Sea? Which strait separates the continents of Europe and Asia? Which strait separates the continents of Europe and Africa? Which strait separates Sicily from mainland Italy? What canal connects Lake Michigan to the Mississippi River?