Tuesday, 5 June 2018

which is the coldest desert?

Image result for sahara desertA desert is an area that receives very little rain and so is unable to support much plants growth. Although many desert are in hot regions, some of the world’s desert can extremely cold.

WHICH IS THE DRIEST DESERT?
Most areas of the Sahara desert have around 76 mm of rain fall in an average year, making this one of the driest desert. Parts of the Atacama desert in Chile are also very dry. Some years may pass between rainfalls there.

Image result for hottest desert
SAHARA DESERT
The dry central region of the sahara desert is coverd
by vast sand dunes.
WHICH IS THE HOTTEST DESERT?
Parts of the Sahara, in North America, and the Mojave Desert, in North America, experiences extremely high temperatures. The average summer temperature may be over 40 degree celcius. In Death valley in the Mojave Desert, temperature of 57 degree celcius have been recorded.

WHICH IS THE BIGGEST DESERT?
The Sahara in North America covers an area of about 9,269,000 square kilometers. This is nearly as big as United states of America.  
  
WHAT IS A RAIN SHADOW?
A rain shadow is a dry region of land that lies close to a mountain range. The mountains block the passage of rain- bringing clouds, casting a shadow of dryness. The Gobi Desert in central Asia, is in the shadow of the Himalayan Mountains.

WHY ARE SOME DESERT EXPANDING ?
The Sahara is growing larger each year, partly because the climate is getting gradually warmer, but mainly because the climate is getting gradually warmer, but mainly because the plant life on the edges of the desert has been destroyed by grazing animals.

Image result for antarctic desert
ANTARCTIC DESERT
The continent is too dry and cold to support
much plant life; only moss, lichen and algae can grow.
WHICH IS THE COLDEST DESERT?
Antarctica is sometimes called a cold desert, and is in fact extremely dry, because all its water is locked up as ice. The desert of central Asia – in Mongolia and western China – are chilled in winter by cold air from the Arctic. Even in summer, when the day are hot, the temperature can drop to below freezing at night.