The majority of non renewable energy sources are fossil fuels such as coal, petroleum, and natural gas. Carbon is the primary component of fossil fuels.
As a result, the time period during which fossil fuels formed (around 360-300 million years ago) is known as the Carboniferous Period.
Wind, water, and tides can all be used repeatedly. However, once natural gas is burned, it cannot be used again. It is found in small quantities on Earth.