Final answer:
Cellular respiration is a process in cells that converts carbohydrates and oxygen into carbon dioxide and water, allowing cells to produce ATP. The combustion of fossil fuels releases carbon dioxide into the atmosphere, contributing to global warming.
Step-by-step explanation:
Cellular respiration is a process in cells in which oxygen is combined with fuel molecules to release the stored energy in the fuel. It is a set of chemical reactions that convert carbohydrates and oxygen into carbon dioxide and water, allowing cells to obtain ATP (adenosine triphosphate) as a source of energy. On the other hand, the combustion of fossil fuels, such as oil, coal, and natural gas, releases carbon dioxide into the atmosphere, contributing to global warming.