Answer:
The
three events occurred during the process of photosynthesis are
(i) Absorption of light energy by chlorophyll.
(ii) Conversion of light energy in chemical energy and
splitting of water molecules into hydrogen and oxygen.
(iii) Reduction of carbon dioxide to carbohydrates.
Role of Stomata These help in the gaseous exchange between
the plant and its atmosphere.
Thus, it helps in supply of carbon dioxide, essential for
photosynthesis. (3)
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