Coal, oil, and natural gas are examples of what?

Coal, oil, and natural gas are classified as nonrenewable energy sources because they are derived from finite resources formed over millions of years. The extraction and consumption of these fossil fuels occur at a rate that far exceeds their natural replenishment, which means that once they are depleted, they cannot be replaced on a human timescale. This contrasts with renewable energy sources like solar or wind, which can be regenerated naturally within a short period.

Furthermore, the continued reliance on coal, oil, and natural gas raises concerns regarding environmental impact, including greenhouse gas emissions and climate change. Understanding this classification is essential for developing effective energy policies and exploring sustainable alternatives.