Final answer:
The colony of Jamestown was initially faced with numerous challenges, but eventually became successful through the cultivation of tobacco.
Step-by-step explanation:
The colony of Jamestown was both successful and unsuccessful for several reasons. Initially, the settlers encountered major problems such as bad weather, starvation, disease, internal disputes, and conflicts with the Powhatan tribe. These factors led to a high mortality rate and a lack of profit for the Virginia Company. However, the cultivation of tobacco by John Rolfe eventually brought success to the colony, as it became a profitable cash crop. This led to the development of a plantation system and the encouragement of the slave trade, which further contributed to the colony's success.