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 in northern Africa, where it occupies parts of Algeria, Chad, Egypt, Eritrea, Libya, Mali, Mauritania, Niger, Tunisia, and Western Sahara.he Sahara is the largest hot desert in the world covering 3.6 milllion square miles, but Antarictica covers 5.5 million square miles and has less than 10 inches of precipitat â¦ ion per year.