which component of earth’s atmosphere is decreased due to photosynthesis?\nozone\noxygen\nhydrogen…

Brief Explanations:

Photosynthesis is a process in which plants use carbon - dioxide, water, and sunlight to produce glucose and oxygen. Carbon dioxide is taken in from the atmosphere during this process, thus decreasing its amount in the atmosphere. Ozone is not directly involved in photosynthesis as a reactant or product in the main process. Oxygen is a product of photosynthesis and its amount increases. Hydrogen peroxide is not related to the main components involved in photosynthesis in the atmosphere.

Answer:

carbon dioxide