1 About Kidney Disease Diet Restrictions The job of the body's kidneys is to filter fluids and remove extra waste from the body. 2  When kidneys fail, fluid and wastes can accumulate in the body and be hazardous to youâ¦. About Kidney Disease Diet Restrictions The job of the body's kidneys is to filter fluids and remove extra waste from the body. 2  When kidneys fail, fluid and wastes can accumulate in the body and be hazardous to youâ¦.
The Sahara divides the continent into North and Sub-Saharan Africa. The southern border of the Sahara is marked by a band of semiarid savanna called the Sahel; south of the Sahel lies the lusher Sudan.
The Sahara is the worldâs largest hot desert and one of the harshest environments on the planet. It is third largest desert overall after Antarctica and the Arctic, which are cold deserts.At 3.6 million square miles (9.4 million square kilometers), the Sahara, which is Arabic for The Great Desert, engulfs most of North Africa.The desert covers large sections of Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Western Sahara, Sudan and Tunisia.he Sahara is bordered by the Atlantic Ocean on the western edge, the Atlas Mountains and the Mediterranean Sea to the north, the Red Sea on the east, and the Sudan and the valley of the Niger River on the south.