Short essay on the phenomenon of Water cycle

Water cycle is a phenomenon which begins with evaporation from the water bodies and plants on the earth and ends with the falling of water as rain.

Evaporation:

Evaporation is a process by which water or a liquid changes into vapour is known as evaporation.

Dew point:

The temperature at which the air gets saturated With the amount of water vapour it is carrying is called the dew point.

Condensation:

When the temperature of saturated air falls below the dew point, the excess vapour then converted into droplets of water. This process is called condensation.

Fog:

Fog is formed when condensation takes place in the lower layers of the atmosphere at the surface of the land.

Smog:

The smoke from factories mixes with fog to form that is called smog.

Dew:

Droplets of water deposited on cold objects near or on the ground by condensation of water vapour is called dew.

Mist:

It is a kind of fog which is not as dense and has relatively

Frost:

When the dew point of the air is below the freezing point Water, frost is formed. It is actually the frozen dew.

Precipitation:

When the droplets of water clouds join together and became heavier they start falling on the surface of the earth. The falling of condensed water vapour is called precipitation.

Rain:

When the clouds carried by air currents cool down and condensation takes place, the droplets grow in size and then they fall as rain.

Snow:

When condensation occurs at 0°C or lower, the excess water vapour in the air forms crystals of ice. They become heavy and fall as snow.

Hailstone:

Hard pellets of ice which fall to the ground is called hailstone.

Relief Rainfall:

When the rain caused by the ascent of moist air along the slope of a mountain is called relief rainfall. This type of rainfall is also known as or graphic rainfall.

Convectional rainfall:

When the rain caused by the ascent of moist air due to the heating of the land is called convectional rainfall.

Cyclonic rainfall:

When the warm air and the cold air from opposite directions meet, a separation zone is created. The warm air rises over the heavier cold air. The warm air cools down, condenses and falls as rain.