The continent which is also called a Polar Desert is letter A or Antarctica. You may also be wondering how Antarctica became a desert when it is, in fact, covered by ice. Here is why: desert does not necessarily mean that an area is dry and covered with sand. Deserts are used to describe an area that is waterless and without any vegetation. With this, Antarctica is also called a Polar Desert because it is covered by the Antarctic Polar Desert with a size of more or less than 5.5 million square miles.
That area is even larger than the Kalahari, Gobi, Sahara and Arabian deserts combined all together. The second Polar Desert is Arctic Polar Desert which covers an area of about 5.4 million square miles and extends over Canada, Greenland, Norway, Iceland, Sweden, Russia, Finland and Alaska.