NEET BIOLOGY

Detailed explanation-1: -The Great Lakes-St. Lawrence Seaway is a deep draft waterway extending 3, 700 km (2, 340 miles) from the Atlantic Ocean to the head of the Great Lakes, in the heart of North America.

Detailed explanation-2: -Lake Erie drains into Lake Ontario via the Niagara River. The entire system flows to the Atlantic Ocean via the St. Lawrence River.

Detailed explanation-3: -Lawrence Seaway, today, is a massive seaway, combining the USA and Canadian waters, allowing shipping transportation to upper parts of Canada. Besides being a major route for most ships travelling in these parts of the world, it is also a major source of hydroelectric energy to both nations.

Detailed explanation-4: -The Welland Canal lock system connects Lake Erie and Lake Ontario, enabling vessels to bypass Niagara Falls. And the St. Lawrence Seaway lock system has tamed the St. Lawrence River, enabling ships to sail from Lake Ontario to the Atlantic Ocean since 1959.

Detailed explanation-5: -The seaway is named for the St. Lawrence River, which flows from Lake Ontario to the Atlantic Ocean. Legally, the seaway extends from Montreal, Quebec, to Lake Erie, and includes the Welland Canal. Ships from the Atlantic Ocean are able to reach ports in all five of the Great Lakes.