The Sahara is a giant desert located in northern Africa. It is the world’s largest traditional desert, meaning a hot, dry desert with large amounts of sand, and it is the second largest desert in the world. [2] The largest desert is Antarctica, but that is a very different type of desert compared to the dry, hot sands of the Sahara. [3] Furthermore, as if the Sahara was not large enough already, it is expanding south into the Sahel about thirty miles every year. [4] The Sahara stretches across northern Africa from the coast of the Red Sea in the east all the way to the Atlantic Ocean in the west. [5] It covers an area of about 3.5 million square miles and is large enough to contain almost the entire continental United States. Which sentence should be moved (and to what location) in order to enhance the coherence of this paragraph?