1. You just now drove north across the Mackinac Bridge (which at one time had the longest suspension span between cable anchorages in the world). Where are you, now that you have reached land after crossing over the Straits of Mackinac? Minnesota Wisconsin Michigan Ontario

2. Some folks theorize that thousands of years ago these straits were bridged by land, and that people from one continent crossed the land connection to become the first inhabitants of another, unoccupied continent. Bering Strait Straits of Malaya Straits of Magellan Panama Strait

3. The Sunda Strait passes between two large islands and is a connection between the Indian Ocean and the Java Sea. On a smaller island in this strait is one of Earth's most destructive volcanoes. Which one? St. Helens Vesuvius Krakatoa Etna

4. The Strait of Hormuz was prominently in the news in 1988, when a Airbus jet airliner was downed by a U.S. Navy ship there. If I stood on the south side of this strait and waved at my friend who lived across the way, what nationality would she be? Turkish Iraqi Saudi Iranian

5. The Bosporus is a strait separating what large land masses? Asia and Europe Australia and New Zealand Europe and Africa Iceland and Greenland

6. The Florida Strait connects the Atlantic Ocean to: Caribbean Sea Gulf of Mexico Pacific Ocean Bermuda Triangle

7. Which of these is the "dual" of a strait--that is, it's a naturally-occurring narrow piece of land connecting two large land masses? archipelago causeway peninsula isthmus

8. From Victoria, British Columbia, one can look southward and hope to see the United States of America. The Straits across which that person is trying to peer are named after which man? President George Washington Chief Sealth of the Suquamish Captain George Vancouver Capitan Juan de Fuca

9. The Pescadores Islands are located in what strait? Straits of Gibraltar Straits of Malacca Korea Strait Taiwan Strait

10. The Strait of Corryvreckan, noted and named for its dangerous whirlpool, is located in the Inner Hebrides. Where is that? South Africa New Zealand Canada Scotland

11. What country sits opposite the Rock of Gibraltar across the Straits of Gibraltar? Algeria Morocco Tunisia Casablanca

12. Until the Panama Canal was constructed a hundred years ago, what was the only way to sail between the Pacific and Atlantic oceans? Straits of Antarctica Straits of Good Hope Straits of Magellan Northwest Passage

13. Torres Strait separates Australia from what large island? New South Wales New Zealand New Guinea New Caledonia

14. The Strait of Otranto joins the Adriatic Sea with the Ionian Sea. Knowing that, and considering the apparent language behind the name "Otranto," in what country would you expect to find the seaport city named Otranto? Italy Slovenia Greece Tunisia

15. The Straits of Dover separates France and England. What is the French designation for this strait? Pas de Calais Detroits des Anglais Chanel du Normandie Sault Sainte Marie