Answer:
Law of conservation of energy
Explanation:
The law of conservation of energy states that in an isolated system the energy remains constant that neither increases or decrease but is changed from one form to another. This shows that energy remains conserved in a system.
In the given question, if we consider the process of photosynthesis as an isolated system then we will observe that glucose which is formed as final product yields energy in the form of ATP. The energy provided by the glucose formation is equal to the energy used during the splitting of water that is the sum of the sunlight energy and the heat loss. This shows that the energy of the system is conserved and is neither lost nor gained.
Thus, the Law of conservation of energy is the correct answer.
