How do fossil fuels play a role in the carbon cycle?

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Fossil fuels are rich in carbon, and burning them releases the carbon into the atmosphere.
Fossil fuels required a lot of carbon to burn, which takes carbon out of the atmosphere.
Fossil fuels are rich in carbon, and burning them returns the carbon to the soil

Fossil fuels are rich in carbon, and burning them releases the carbon into the atmosphere. This carbon was originally stored underground for millions of years, so when it is burned, it adds additional carbon dioxide to the atmosphere, contributing to the greenhouse effect and global warming. This disrupts the natural balance of the carbon cycle and can have negative impacts on the environment.