Question

which of these is considered to be a waste product (something that is produced) of photosynthesis?
water
oxygen
sunlight

Explanation:

Photosynthesis uses carbon - dioxide and water in the presence of sunlight to produce glucose and oxygen. Oxygen is released into the atmosphere and is considered a waste product of this process. Water is a reactant, and sunlight is an energy source, not a product.

Answer:

B. Oxygen