Kinda, but: A tree can live for hundreds of years, which is long enough for many changes to take place. Not all trees that die decompose completely. Coal and

Kinda, but: A tree can live for hundreds of years, which is long enough for many changes to take place. Not all trees that die decompose completely. Coal and oil are examples of long term sequestration. A lot of the carbon in coal and oil would still be buried if not for meddling humans.