The sunlight falling on the leaf provides the plant with the energy needed for photosynthesis. At the same time

The sunlight falling on the leaf provides the plant with the energy needed for photosynthesis. At the same time, it puts it at risk of drying out. This does not happen under normal conditions. Why?

Because simultaneously with the energy of photosynthesis, a large amount of moisture is consumed. And the so-called “dehydration” occurs at the leaf. But under normal conditions this does not happen because the energy received is enough for photosynthesis and for the preservation of water in the leaf.