Final answer:
The fort's location tells us about the kind of threats the English might face, such as the British Navy. The Continentals constructed forts and fortifications on Long Island to defend against a potential British attack on New York City.
Step-by-step explanation:
The location of the fort tells us about the kind of threats the English might face. In the case of New York City, the Continentals constructed forts, entrenchments, and fortifications on Long Island in anticipation of a British attack. These defensive measures were taken because the British Navy posed a significant threat. By fortifying strategic points and creating obstacles in the water, the Continentals aimed to reduce the threat from the formidable British Navy and protect New York City.