carbon dioxide
Most animals give off carbon dioxide as a waste product for life. This is called "aerobic".
CaRbon dioxide.
Oxygen is the waste product of plants that animals need in the process of oxidative phosphorilation.
Oxygen is a product of photosynthesis that is used by plants and animals for respiration.
Plants release oxygen as a waste gas.
Methane is given off by animals as a waste gas.
carbon dioxide
The gas that is excreted as a waste product of autotrophic nutrition in maple trees is oxygen. It is produced in the light stage of photosynthesis.
Carbon dioxide (CO2) is the gas produced as a waste product by combustion and respiration. It is a greenhouse gas that contributes to the greenhouse effect and global warming.
Carbon dioxide
Depends on what reaction you're considering. For plants Oxygen is a waste gas, for animals its CO2, in an oil well it might be methane.
we breathe out a gas called carbon dioxide