Definition: Given a scientific passage and an answer, generate a question for the given answer.
Input: Passage: Figure 8.4 Photosynthesis uses solar energy, carbon dioxide, and water to produce energy-storing carbohydrates. Oxygen is generated as a waste product of photosynthesis. Answer: oxygen
Output:
Photosynthesis uses solar energy, carbon dioxide, and water to produce energy-storing carbohydrates.what is produced as a waste product?