A scalpel, or lancet, is a small and extremely sharp bladed instrument used for surgery, anatomical dissection, and various arts and crafts (called a hobby knife). Scalpels may be single-use disposable or re-usable.
The Sahara desert is the largest hot desert in the world, located in the northern part of the African continent. The Desertâs âmean annual temperature exceeds 86 degrees and it could get up to as high as 122 degrees in the summer, and as low as 30 degrees in the winterâ (7).
The Sahara desert is the third largest desert in the world. It is  also the world's hottest desert. The countries it covers include  Algeria, Chad, Egypt, Libya, Mali, Mauri â¦ tania, Morocco, Niger,  Western Sahara, Sudan, and Tunisia. The two largest deserts in Africa are the Sahara in northern Africa and the Kalahari in southern Africa.       The Sahara Desert covers 3,500,000 miles. It is the largest desert in the world. The name Sahara comes from the Arabic word for desert.