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 divided into the regions of western Sahara, the central Ahaggar Mountains, the Tibesti Mountains, the Air AÃ¯r (mountains a region of desert mountains and high), plateaus The tenere, tÃ©nÃ©rÃ© desert And The (libyan desert the most). arid region