What gases are used and expelled by photosynthesis and respiration?

These are the gases involved in photosynthesis:

Photosynthesis is the process in which green plants produce glucose. It involves the conversion of carbon dioxide gas, water and minerals the plants take in from their surroundings into sugar and gaseous oxygen. Photosynthesis involves the intake of carbon dioxide and the release of oxygen.

Hope this helps:)

a chemical reaction happens

explanation:

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa