Question

what do plants produce as a by-product of photosynthesis? (1 point) water and carbonic acid carbon dioxide and water oxygen and glucose hydrogen and carbon dioxide

Explanation:

The process of photosynthesis in plants uses carbon dioxide and water (with light energy) to produce glucose (for energy/storage) and oxygen as a by - product. Let's analyze each option:

• Option "water and carbonic acid": Carbonic acid is not a product of photosynthesis, and water is a reactant, so this is incorrect.
• Option "carbon dioxide and water": These are reactants in photosynthesis, not products, so this is incorrect.
• Option "oxygen and glucose": Glucose is the main product for the plant's use, and oxygen is released as a by - product, so this is correct.
• Option "hydrogen and carbon dioxide": Hydrogen is not a main by - product, and carbon dioxide is a reactant, so this is incorrect.

Answer:

oxygen and glucose