Any of the fossil fuels (coal, oil and natural gas) is a non renewable source of energy.Any resource for which there is a finite or limited supply. Fossil fuels do not generate fast enough to meet our demand and use, because it takes millions of years to naturally form more.the examples are coal ,oil ,gas and coppercoal and oilAnything that takes more than a lifetime to replenish : coal, oil.Natural Resources that are used up more quickly than they can be replaced are nonrenewable resources. Earths supply of nonrenewable resources are limited . You use nonrenewable resources when you take home groceries in plastic bags, paint a wall, or travel by car. plastic, paints, and gasoline are made from important nonrenewable resources called petroleum, or oil, petroleum is formed mostly from the r