The net yield of H2O in photosynthesis is?

Explanation

In the process of photosynthesis, water (H2O) is split during the light-dependent reactions to provide electrons, protons (H+), and oxygen (O2). The oxygen is released as a byproduct into the atmosphere, while the electrons and protons are used in the subsequent steps of photosynthesis to produce energy-rich molecules like ATP and NADPH. While water is utilized in the photosynthetic process, it is ultimately regenerated and not consumed. Therefore, the net yield of water in photosynthesis is 0 since the same amount of water that is initially used is also produced as a byproduct.