Question

Evaporation‌ ‌of‌ ‌a‌ ‌material‌ ‌takes‌ ‌place:‌ ‌
(a)Above‌ ‌its‌ ‌boiling‌ ‌point‌ ‌
(b)Above‌ ‌its‌ ‌melting‌ ‌point‌ ‌
(c)Below‌ ‌its‌ ‌boiling‌ ‌point‌ ‌
(d)Below‌ ‌its‌ ‌melting‌ ‌point‌

Answer 1

Hint: Water is a great source for living. If the water is not present on the earth no one can survive including plants and animals. So to overcome this water cycle has to work and for that water from different water sources goes into the sky and falls back on the earth in the form of rain from clouds generated from water sources.

Complete answer:
The process or phenomenon of changing of liquid into vapor or gaseous state is known as evaporation. It is a type of vaporization. Evaporation is a very important part of the water cycle. It provides fresh water to all the things present on the earth like humans, animals, plants, crops, etc. Evaporation takes place below its boiling point as the molecules present in the liquid have different energies. In a liquid the molecules collide with each other in which some of them achieve higher energies which allows them to escape and form water vapor. These vapors then rise up in the sky and form clouds.

Note:
There are many factors that influence the rate of evaporation such as concentration of the substance evaporating in the air, pressure, surface area, intermolecular forces, temperature of substances, etc. Evaporation is used in many laboratory analysis such as spectroscopy and chromatography. It is also helpful in the field of film deposition, combustion vaporization and pre combustion vaporization.