Let's learn about "deserts" and "the geographical background of deserts".

  The deserts of the world

• The deserts of the world are mainly divided into 26 zones.

• Each of those deserts covers more than 52,000 square miles [52,000 sq km].

• There may also be several other small deserts within such a desert region.

 Management Desert

• A desert is an area that receives very little rainfall.

• Deserts are classified as "warm deserts" and "cool deserts".

• There are two types of desert classes: BWH [hot desert] and BWK [temperate desert].

• In 1953, the deserts were divided into three main types based on their desert rainfall.

1. Very dry land areas

•  It may not rain for at least 12 consecutive months.

2. Arid land areas

•  Annual rainfall is less than 250 mm or less than 10 inches.

3. In semi-arid lands

•  Annual rainfall ranges from 250 mm to 500 mm.

Geographical background of deserts

• Deserts cover one third of the world's land area.

• Temperatures vary from region to region daily and seasonally.

• During the day, the desert temperature is around 45 degrees Celsius.

• In addition to the sand dunes, deserts are found in plains and rocky plains, where all the sand is blown away by the wind and forms rocks with a shiny surface.

• These areas are called "desert rock platforms" and are prone to frequent small-scale erosion.

• A sanctuary is,

• An isolated area with water and vegetation in a desert.
• These sanctuaries are primarily useful for desert animals.