Question

1. which geographical feature was vital for the development of port cities in the thirteen colonies?

a. gulf of mexico
b. mississippi river
c. atlantic seaboard
d. great plains

Explanation:

The Thirteen Colonies were located along the Atlantic coast of North America. Port cities rely on access to the ocean for trade and transportation. The Atlantic Seaboard (option c) provided the necessary coastal access for port development. The Gulf of Mexico (a) is far from the Thirteen Colonies, the Mississippi River (b) is a river system more relevant to inland and southern/western regions later, and the Great Plains (d) is a landlocked, flat region not related to port development.

Answer:

c. Atlantic Seaboard