Final answer:
Jamestown became a stable colony through tobacco cultivation and improved relations with the Powhatan tribe.
Step-by-step explanation:
Jamestown eventually became a stable colony once the colonists started growing tobacco as a cash crop. Initially, the colonists struggled with each other and the Native Powhatan inhabitants. They also faced famine and diseases, which resulted in high mortality rates. However, with the marriage of Pocahontas and John Rolfe, relations with the Powhatan improved, and the cultivation of tobacco brought prosperity to Jamestown.