Non-renewable resources are resources for which there is a limited supply. The supply comes from the Earth itself and, as it typically takes millions of years to develop, is finite. Non-renewable resources can generally be separated into two main categories; fossil fuels and nuclear fuels.
But there were pockets of the North on the eve of the Revolution where slaves played key roles in the economic and social order: New York City and northern New Jersey, rural Pennsylvania, and the shipping towns of Connecticut and Rhode Island.
Many slaves were field hands who worked the tobacco fields in the southern colonies. These slaves worked extremely hard and were often treated poorly. Other slaves were house servants. These slaves did chores around the house or helped out in the master's trade shop.y the late 1600s, slavery of Africans became common in the colonies. New laws called slave codes were passed in the early 1700s that formalized the legal rights of slave owners and the status of slaves.