Which set of reactions uses h2o and produces o2? a) light independent reactionsb) light dependent reactions

Light dependent

Explanation:

Photosynthesis is the process by which green plant make their own food using energy from the sun.Photosynthesis occurs in two stages, that is, light dependent reactions and light independent reactions.During light dependent reactions the energy from the sunlight is absorbed by the chlorophyll pigments and used to break down water molecules into oxygen atoms and hydrogen ions, a process called photolysis.Oxygen produced may be released in the atmosphere or used for respiration while the hydrogen ions are taken to the light independent reactions.

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na