Question

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

Explanation:

In photosynthesis, plants use carbon dioxide and water, with sunlight as energy, to produce glucose and oxygen. Oxygen is released as a by - product (waste product in terms of the process's output not used by the plant for its immediate energy - making in photosynthesis). Water is a reactant, and sunlight is an energy source, not a product.

Answer:

A. Oxygen