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 can be divided into several regions including: the western Sahara, the central Ahaggar Mountains, the Tibesti Mountains, the AÃ¯r Mountains, the TÃ©nÃ©rÃ© desert, and the Libyan Desert. The name 'Sahara' is derived from á¹£aá¸¥ÄrÄ (âØµØ­Ø§Ø±Ùâ, pronounced /ËsË¤aÄ§aËraË/), the plural of the Arabic word for desert.