Which of the following sets of chemical reactions does the process of Photosynthesis involves?

Options :
  1. oxidation of H2O and release of O2
  2. reduction of CO2 and oxidation of H2O
  3. reduction of CO2 and release of O2
  4. reduction of CO2, oxidation of H2O and release of O2
Answer and Explanation :-

Answer: Option 4

Explanation:

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