Question

What is the ultimate source of energy on earth, comment?

Answer 1

Sunlight:

1. Plants are the primary producers of the ecosystem which utilize sunlight to produce organic food through the process of photosynthesis
2. When sunlight falls on the leaves, the chlorophyll traps the light energy it emits energy which is utilized to produce energy molecules such as ATP and NADPH₂.
3. These energy-rich molecules are required for the initiation of sequential reactions in the Calvin-Benson cycle.
4. It finally results in the synthesis of glucose as the end product.