What is a non-renewable resource?

A non-renewable resource is defined as a resource that cannot be replaced on a human timescale. This means that the formation of these resources takes millions of years, and once they are depleted, they cannot be readily or quickly replenished within a timeframe that is relevant to human use. Examples of non-renewable resources include fossil fuels, such as coal, oil, and natural gas, as well as minerals like gold and copper.

In contrast, a resource that can be regenerated in a short time would be considered renewable. Resources sourced from nature can include both renewable and non-renewable types, and a resource that is always available does not accurately capture the essence of non-renewable resources, as they are finite and limited in nature. Understanding this distinction is crucial when considering resource management and sustainability.