Why the photosynthesis is important to world ?

Explanation

1) In photosynthesis solar energy is converted to chemical energy and is stored in plants as starch.
2) During photosynthesis plants absorb carbondioxide from the atmosphere. So it reduces the `CO_2` level on the earth.
3) In this · process plants release oxygen as a by product. Oxygen is essential for all living things on the earth.
4) Each year photosynthesis synthesizes approximately 160 billion metric tonnes of carbohydrates.