Write a short note on the significance of photosynthesis.

The process of photosynthesis is of extreme importance as it is the source of food as well as oxygen for all animals directly or indirectly. Food is produced by the process of photosynthesis. Leaves capture light energy from the sun and use it to make food. Animals that feed on the plants get this energy. They pass it on further when they are eaten by other animals. The energy obtained from food is used by all organisms for various metabolic activities. All living organisms require oxygen. This oxygen is released by the plants during photosynthesis. In the absence of photosynthesis, the oxygen level in the atmosphere would decrease and life on earth would become impossible.