Which major waterway connects the North American Great Lakes directly to the Atlantic Ocean?
Answer and explanation
Correct answer: C. Saint Lawrence River
- Step 1: The Saint Lawrence River issues from Lake Ontario and flows northeastward through Ontario and Quebec into the Gulf of Saint Lawrence.
- Step 2: Opened in 1959, the Saint Lawrence Seaway enables ocean-going cargo vessels to travel all the way into the Great Lakes heartland.
Answer
Saint Lawrence River
Why not the others: 'Hudson River' flows southward through New York State into New York Harbor; 'Mackenzie River' flows into the Arctic Ocean in northern Canada; 'Potomac River' flows through Washington, D.C. into Chesapeake Bay.
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