DENDROLOGY

Detailed explanation-1: -Photosynthesis is the process through which plants convert sunlight, water, and carbon dioxide into oxygen and sugar energy. The term “photosynthesis” thus refers to synthesis from light. So it is clear that the energy for photosynthesis comes from light.

Detailed explanation-2: -During photosynthesis, energy from sunlight is harvested and used to drive the synthesis of glucose from CO2 and H2O. By converting the energy of sunlight to a usable form of potential chemical energy, photosynthesis is the ultimate source of metabolic energy for all biological systems.

Detailed explanation-3: -In photosynthesis, solar energy is harvested and converted to chemical energy in the form of glucose using water and carbon dioxide. Oxygen is released as a byproduct.