A nonrenewable resource is a natural resource that cannot be replenished or replaced on a human timescale. Examples of nonrenewable resources include fossil fuels (such as coal, oil, and natural gas), minerals (such as gold, silver, and copper), and nuclear fuels (such as uranium). These resources are finite and can be depleted if used at a faster rate than they are naturally replenished. Due to their limited supply, nonrenewable resources are often considered unsustainable in the long term.
