Waste vegetables are put into a sealed container containing air and then left for several days. Bacteria break the vegetables down. While this decomposition is taking place, the bacteria respire. What happens to the concentration of carbon dioxide and methane in the air inside the container?
- Acarbon dioxide decreases, methane decreases
- Bcarbon dioxide does not change, methane increases
- Ccarbon dioxide increases, methane does not change
- Dcarbon dioxide increases, methane increases