Answer:
Oxygen
Explanation:
The goal of photosynthesis is to convert radiant energy from a light source, which the lamp acts as this form of energy; and thus, turns that into chemical energy that is used for its 'food'. As a result of the green water plant and water present, photosynthesis converts carbon dioxide and water into oxygen, and even glucose! Without photosynthesis making the glucose, it would not be possible for cellular respiration to make ATP (or much less ATP would be produced). Both processes are important to the carbon cycle.
