Final answer:
Fishing and maritime trade succeeded the most in New England due to the region's environmental characteristics.
Step-by-step explanation:
The economic activity that succeeded the most in New England because of the region's environmental characteristics was Fishing and maritime trade. Due to the long winters and rocky soil, agriculture was challenging in New England. However, the abundant coastal waters provided an ideal environment for fishing and maritime trade. The region became known for its expertise in shipbuilding and exporting fish products.