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1. Photosynthesis is anabolic process which uses inorganic substances and produces food for all life directly or indirectly.
2. This process transforms solar energy into chemical energy.
3. The released by product O2 is necessary not only for aerobic respiration in living organisms but also used in forming protective ozone layer around earth.
4. It also helps us in providing fossil fuels, coals, petroleum and natural gas.
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