Answer and Explanation:
The major landform features of the Atlantic Periphery provide both opportunities and constraints for early settlement in the following ways:
OPPORTUNITIES:
1. There was flood in the coastal river valleys and this led to the formation of inlets which became harbors that were used for fishing.
2. The melting of glaciers also led to the formation of ponds and inland lakes which made it possible to hunt animals and engage in fishing. Also there wrre moany lobsters in that area which serves as food.
CONSTRAINTS:
1. The presence of heavy snowballs and thick fogs is a constraints faced by the early letters. This environmental hazard affected the system of transportation greatly.