Question

Which component of the earth’s atmosphere is decreased due to photosynthesis?

ozone
oxygen
hydrogen peroxide
carbon dioxide

Answer 1

Carbon Dioxide

Step-by-step explanation:

Let's see the reaction of Photosynthesis

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Where carbon dioxide and water are reactants and glucose and oxygen are products which means CO₂ and H₂O are taken from the environment and glucose is supplied to plants while oxygen is supplied back to the environment.