What is an example of a non-renewable resource?

Fossil fuels such as coal and oil are categorized as non-renewable resources because they are formed over millions of years from the remains of ancient plants and animals under specific geological conditions. Once these resources are extracted and consumed, they cannot be replenished on a human timescale, meaning they are finite and will eventually run out. This contrasts with renewable resources, which are naturally replenished in a relatively short time frame and include sources like solar energy, wind energy, and hydropower. Understanding the nature of non-renewable resources is crucial for addressing environmental challenges, as their depletion can lead to significant ecological and economic consequences.