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 is the worldâs largest hot desert and one of the harshest environments on the planet. It is third largest desert overall after Antarctica and the Arctic, which are cold deserts.At 3.6 million square miles (9.4 million square kilometers), the Sahara, which is Arabic for The Great Desert, engulfs most of North Africa.The desert covers large sections of Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Western Sahara, Sudan and Tunisia.he Sahara is bordered by the Atlantic Ocean on the western edge, the Atlas Mountains and the Mediterranean Sea to the north, the Red Sea on the east, and the Sudan and the valley of the Niger River on the south.