What is the largest desert? - This question probably sometimes occurred in your mind. Let us find some description about the desert. Desert is a region or landscape with precipitation or water cycle, less than enough to support growth of most plants. The desert is an area with less water caused by evapotranspiration or high movement of amount of water from the soil to the air. In other words, evavoration is a significant water loss from the watershed. Almost deserts are often composed of sand called ergs and rocky surfaces which are known as Hamada. The sand dunes cover nearly most of the desert and the rest by rocks and soil.

Back to the question "what is the largest desert", you might be surprised that the answer is Antarctic desert with 13.8 million square kilometers. Some of deserts have hot weather but deserts can be cold too like the Antarctica and the arctic desert. The second largest desert is the arctic desert with 13.7 million square kilometers. The third large desert based on the large region is Sahara but Sahara is the largest hot desert on earth located in northern Africa. It’s covering about 9 million square kilometers and the area across of 12 countries.

Although the desert is an extreme area, the desert areas sometimes contain valuable deposits of mineral that were formed in the arid environment or exposed by erosion. Due to this extreme and the consistent dryness, natural preservation of artifact and fossils are perfect to be placed at this geographic location.