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.
It is the third largest desert in the world and also the hottest. The borders of the Sahara Desert include the Red Sea on the east, the valley of the Niger River and the Sudan on the south, the Mediterranean and the Atlas Mountains on the north, and the Atlantic Ocean on the west.he Sahara Desert is the third largest in the world. The first two are Antarctica and the Arctic. The Sahara Desert covers 3.6 million square miles. It is almost the same size as the United States or China.