stoneyclark stoneyclark

09-01-2019
Social Studies

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How do locks help ships travel up and down the St. Lawrence river

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Аноним Аноним

09-01-2019

Great Lakes ships to move across a vast expanse of territory in which water levels fall more than 182 m which is 600 feet from Lake Superior to the Atlantic Ocean. During that journey, a vessel will pass through 16 separate locks.

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