Answer:B reactants are taken in from the environment by the plants, and products are formed inside the plant.
Explanation:
Carbon dioxide is what humans breath out, water comes from the rain, energy comes from the sun which are all taken in from the environment by the plant. Glucose and oxygen are products after the chemical reaction and this is done inside the plant.
The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water. you start with reactants and end with products
