Question

What exactly is dew?

Answer 1

Hint: On a cricket or a football field or any other surface, a layer or a sheet of moisture can be observed. These water droplets are usually formed at night.

Complete answer: A form of water in the form of droplets that appears on objects, especially thin objects in the dawn or the evening due to condensation ( change of the physical state of matter from the gas stage into the liquid stage and vice versa) is known as Dwe.
The dwe takes the form of ice when the temperature is low. This form is known as frost.
The vapours of water condense into droplets as per the temperature. The Dew point is the temperature at which droplets form. The dew point is reached when the temperature of the surface falls, water vapor present in the atmosphere condenses to form small droplets on the surface. This process of formation of dew differentiates it from those hydrometeors or meteorological occurrence of water, examples are clouds or fog. Drosometer is a classical instrument used for measuring dew. The Indian Institute of Management Ahmedabad have (IIMA) has developed a large-scale dew harvesting system in the coastal, semiarid region of Kutch. The condensers set up by the IIMA can harvest more than 200 litres of dew water on an average per night from October to May dew season, for 90 days.

Note: Dew and guttation are different and should not be considered the same, the method by which plants release the surplus water from the tips of their leaves is known as guttation.