In the process of photosynthesis, plants use carbon dioxide (CO2), Water (H2O),
and light energy to produce a sugar (CaH120) and oxygen (O2). In the process of aerobic
respiration, animals and plants release energy from sugar and oxygen and produce carbon
dioxide and water. The chemical equations that describe these reactions look like this:
6CO2 + 6H20 + light > CHI206 + 602
CaHi206 + 602 > 6C02 + 6H20 + energy
How do these equations explain why the total amount of O and CO, remains the same?

Q&A Education