Respuesta :
photosynthesis and chemosynthesis Let me know if you want me to explain more in depth.
Answer: Respiration and Photosynthesis.
Explanation:
The process of production of food by the producers with the help of sunlight and carbon dioxide that aids in the production of oxygen as a by product and glucose as main product.
This process helps in the production of the oxygen into the marine environment.
The aquatic organisms also respire and release carbon dioxide into the environment.