Burning fossil fuels contributes to the net increase in atmospheric carbon because (С) Carbon that has been sequestered underground is added to the carbon cycling between the atmosphere and the biosphere.
Fossil fuels are made with the aid of using decomposing flowers and animals. These fuels are observed withinside the Earth's crust and include carbon and hydrogen that may be burned to supply energy. Coal, oil and herbal fueloline are examples of fossil fuels.
Fossil fuels are formed by the decomposition of buried carbon-based organisms that died millions of years ago. They create carbon-rich deposits that are decomposed and burned for energy. They are non-renewable and currently provide about 80% of the world's energy.
These have a lot of carbon in them and when they were buried underground they took the carbon out of the atmosphere.
In summary, burning fossil fuels puts carbon back into the atmosphere, increasing the carbon in the atmosphere.
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