What Is A Desert These desert creatures normally remain hidden, especially true during the daylight hours, to preserver moisture. Roughly one third of the world's land surface is desert. Most commonly deserts around the world have similar characteristics. Sand Dunes can often times be present in deserts as the desert soil is mostly comprised of sand. Typically rocky terrain will be exposed in certain regions,...... Similar Editorial : Kalahari Desert Horseback Safaris by Sandra Olivier. | Source : Marriage Visa Usa