Dew is a form of atmospheric deposition consisting of tiny droplets of liquid water that accumulate on surfaces at ground level. Its formation is a physical phenomenon known as condensation, which occurs when the temperature of a surface drops to or below the dew point of the surrounding air. Since the air is saturated or nearly saturated with water vapor, the excess atmospheric water vapor changes phase directly into liquid form upon contact with the cooler solid or liquid surface. This process is fundamentally studied in atmospheric science and ecology, as the presence and accumulation of dew droplets can significantly affect surface temperature gradients, microclimates, and biological processes like nutrient uptake by vegetation.