Friday 2 May 2014

Sahara Desert, Africa

Sahara Desert, Africa

 The Sahara Desert is the world\'s hottest desert and also the third largest desert placed within the northern portion of Africa and covers over 9,000,000 sq Km. It\'s bounded within the east by the Red Sea and it stretches west to the Atlantic Ocean. To the north the Sahara Desert northern boundary is that the Mediterranean Sea where within the south it ends at the Sahel a region. Where the desert landscape transforms into a semi-arid tropical savanna.  


The sahara desert  covers parts of many African nations as well as Libya,Chad,Algeria, , Algeria,Mali, Mauritania , Morocco, Niger, Sudan Tunisia and Western Sahara. Most of the sahara desert is undeveloped and features a varied topography. Most of its landscape has been formed over time by wind and includes sand dunes, sand seas known as ergs, barren stone plateaus, gravel plains, dry valleys and salt flats. Around 25th of the desert is sand dunes, some of that reach over 500 ft (152 m) in height.


Most of the water found within the desert these days is in the sort of seasonal or intermittent streams. the only permanent river in the desert is the Nile River that flows from Central Africa to the Mediterranean. alternative water in the Sahara Desert is found in underground aquifers and in areas where this water reaches the surface, there area unit oases and generally little cities or settlements like the Bahariya Oasis in Egypt and Ghardaïa in Algeria.
 Due to the high temperatures and arid conditions of the Sahara Desert, the plants within the Sahara Desert is distributed and includes solely around five hundred species. These consist chiefly of drought and warmth resistant varieties and people custom-made to salty conditions where there\'s sufficient  wet.

The harsh conditions found within the Sahara Desert have additionally played a task within the presence of animal life within the Sahara Desert. within the central and driest a part of the desert there square measure around seventy completely different animal species, twenty of that are large mammals just like the spotted hyena. different mammals embrace the gerbille, sand fox and Cape hare. Reptiles just like the sand snake and also the monitor lizard square measure gift within the Sahara yet.

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