Question

What are the two stages in photosynthesis

Answer 1

Actually there are 3 stages in photosynthesis:-

i) Absorption of Sunlight by Chlorophyll.
ii) Conversion of Light Energy into Chemical Energy and splitting of H2O      molecules to release H2 and O.
iii) The released H2 from Water splitting takes part in the reduction of CO2 in Carbohydrates. 

Answer 2

Explanation:

• absorption of light energy by chlorophyll.
• conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen.
• reduction of CO2 to carbohydrates.