River System........................
Answer:
Weather patterns don’t tend to change with altitude
Explanation:
Answer:
B
Explanation:
If i understand it good, its definetly B.
In a time before railroads and highways, the Great Lakes and St. Lawrence River served as the primary transportation system. Many of North America's largest cities were established along the waterway as commerce flourished between their ports. Today, Great Lakes-Seaway shipping is equally important.