The first section of the Module 5 Lecture cites a desert called the Sahara, the accompanying map cites it as the Sahara Desert, yet it is correctly called just the Sahara. Do some outside investigation on the etymology of the word Sahara and then provide an informed explanation for why it's correctly just called the Sahara, and not Sahara Desert. Source references required, and cite them per the info provided in the Reference Citation Guide in the course menu..