Final answer:
An example of an uncertain time in the Atlantic colonies is the period between 1640 and 1660 in England when political turmoil and the lack of new colony foundations caused instability.
Step-by-step explanation:
An example of an uncertain time in the Atlantic colonies is the period between 1640 and 1660 in England. During this time, England experienced political turmoil, with the execution of King Charles I and the establishment of a republic under Oliver Cromwell.
No new colonies were founded during this period, causing uncertainty and instability in the Atlantic colonies.
Additionally, the restoration of the monarchy in 1660 brought about a renewed interest in colonization, leading to the founding of colonies like New Jersey, Pennsylvania, Delaware, and Carolina.