Why does dew appear on the leaves of plants, on the grass early in the morning?

This phenomenon usually occurs in the summer. On a summer day, it is most often very hot, and therefore water begins to evaporate from rivers and lakes. as well as from plants. Droplets of moisture “fly” in the air all day. And at night the air cools down quickly. And the water begins to settle on plants, leaves in the form of dew drops.