Helppp 1 Why is the Great Lakes St Lawrence Lowlands considered one region even though it is divided?

This region was formed when cracks in the Earth's crust created a rift valley, which is a “valley created when the part of land between the cracks in the Earth's crust drops down”. Two major waterways that are located within this landform region are the St. Lawrence River and Lake Huron.

Explanation:

It is considered one region!