Final answer:
True. Jamestown was located on a peninsula for defensive purposes.
Step-by-step explanation:
The location of Jamestown on a peninsula was selected for defensive purposes. True.
The colonists at Jamestown chose a rather unhealthy, marshy area along the James River on which to land. While there were many suitable building sites with better environments, the colonists may have thought that being in a marsh would make them less likely to attract unwanted attention from the natives or Spanish. Despite the difficulties posed by the location, the colonists still worked to establish defenses, including the construction of a three-sided fort with walls made of packed logs and circular areas at each corner for watchmen and cannons.