Question

Oragraphic rainfall, acid rain, cyclonic rainfall, convectional rainfall. plz give me answer​

Answer 1

Question -:

Explain Orographic, Acid, Cyclonic and Convectional Rainfall.

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Rainfall itself is of different types -: Cyclonic Rainfall, Acid Rainfall, Orographic Rainfall and Convectional Rainfall.

Orographic Rainfall.

The presence of a mountain or a hill in the path of moisture-laden winds forces the air mass to ascend along the slope leading to cooling of rising air. This leads to condensation and causes rainfall. Such rainfall is called Relief or Orographic Rainfall. The windward side of the mountain receives heavier rainfall compared to the leeward side.

Cyclonic Rainfall.

When a warm air mass and a cold air mass meet, the warm air being lighter rises over the cold mass, cools and condenses. This causes rainfall along the path and is called Cyclonic Rainfall. It is generally associated with cyclones.

Convectional Rainfall.

When a column of hot air expands, rises and reaches the upper layer of the atmosphere, condensation of moisture takes place leading to the formation of clouds. These clouds produce sudden and heavy rainfall. This is called Convectional Rainfall and it is a daily feature in equatorial regions.

Acid Rain.

Except CO2, the acidic gases present in the atmosphere are fairly soluble in water. So they are brought down by rain. Thus, the first shower of rain is slightly acidic. After that, the rain becomes almost neutral. Rain with a high acid content is called acid rain. A part of the acid present in acid rain is neutralised by the bases present in the soil. But the excess acid makes the soil acidic and unfit for cultivation. It also makes water bodies like ponds, lakes and rivers acidic. This adversely affects aquatic life. Acid rain corrodes statues and monuments made of metals, marble and cement.

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