- combustion of coal and oil
- decomposition of plants and animals
- cellular respiration
Select each correct answer. More than one answer may be correct.
A diagram of the carbon cycle is shown below.
carbon-oxygen%20cycle
Based on the information in the diagram, which of the following processes returns carbon dioxide to the air or water?
combustion of coal and oil
photosynthesis
decomposition of plants and animals
cellular respiration
1 answer