Why is photosynthesis the most important life process on the earth? Explain.

Photosynthesis is the process by which green plants produce carbohydrates using carbon dioxide, and water in the presence of sunlight. This process can be termed as the most important life process in the ecosystem as it enables the conversion of light energy of the sun to chemical energy in the form of carbohydrates. This energy further moves up in the food chain via the heterotrophs to the primary, secondary and tertiary consumers. Hence, the energy that eventually moves up the food chain and then returns to the plants via the process of decomposition is first produced in the process of photosynthesis.