Respuesta :
Answer: C. It is an important shipping route
Explanation: The St. Lawrence River and Seaway is of vital geographic and economic importance to the Great Lakes system, connecting the lakes to the Atlantic Ocean and providing navigation to deep-draft ocean vessels. ... Lawrence River drops 226 feet between Lake Ontario and Montreal, Canada
Answer:
Lawrence Seaway, today, is a massive seaway, combining 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 the nations.
Explanation: