Which of the following is a waste product of photosynthesis?Group of answer choicesH2OO2CO2All of the above

The waste product of photosynthesis is O2 (oxygen). Here's a step-by-step explanation:

1. Photosynthesis is a process used by plants, algae, and certain bacteria to convert light energy, usually from the sun, into chemical energy in the form of glucose (sugar).

2. This process takes place in the chloroplasts, specifically using chlorophyll, the green pigment involved in photosynthesis.

3. The general balanced equation for photosynthesis is: 6CO2 + 6H2O + light energy = C6H12O6 + 6O2

4. In this equation, CO2 (carbon dioxide) and H2O (water) are the reactants, which means they are the substances that are consumed in the reaction. Light energy is the energy source required for the reaction to take place.

5. The products of the reaction are C6H12O6 (glucose) and O2 (oxygen). The glucose is used by the plant for energy and growth, while the oxygen is released back into the atmosphere as a waste product.

So, out of the given options, O2 (oxygen) is the waste product of photosynthesis.