Q: For photosynthesis to begin, the inputs required are sunlight, water, and what?


Read this paragraph and choose the correct option from the provided answers:

Recall that the only required ingredients needed for photosynthesis are sunlight, carbon dioxide (CO 2 ), and water (H 2 O). From these simple inorganic ingredients, photosynthetic organisms produce the carbohydrate glucose (C 6 H 12 O 6 ), and other complex organic compounds. Essentially, these producers are changing the energy from the sunlight into a usable form of energy. They are also making the oxygen that we breathe. Oxygen is a waste product of photosynthesis.

 Choices:

- phosphorus dioxide

- methane

- sulfur dioxide

- carbon dioxide


A:
carbon dioxide