White Sands - white desert White Sands, having 442 total square kilometers of dune fields, is the world's largest surface deposit of gypsum. Unlike other desert sands, it is cool to the touch, due to the high rate of evaporation of surface moisture and the fact that the sands reflect, rather than absorb, the sun's rays.
The Eye of Sahara The Richat Structure in Mauritania, also known as the Eye of the Sahara, was interpreted as an asteroid impact structure, but no evidence for shock metamorphism has been found. Today scientists believe that it is a huge (40 km in diameter) and deeply eroded geologic dome.
Which continent has the lowest precipitation rate? Antarctica is technically a desert, averaging just 166 mm (6.5 in) of precipitation per year. Only some fringe coastal areas have a tundra climate with a short summer averaging above freezing, and much higher precipitation.
Circular objects in desert? Agricultural fields. The circular shape of fields is characteristic of center pivot irrigation. These fields are approximately 0.6 mile (1 kilometer) in diameter. Lighter colors indicate fields that have been harvested recently or just planted.
Australian Gibson Desert is named after Alfred Gibson. Who was he? A man who got lost in the desert. The Gibson Desert was named by explorer Ernest Giles after a member of his party, who became lost and presumably died in the desert. There is almost nothing known about Alfred Gibson apart from his appearance.
How much of Australia coastline is desertous? Only 140 miles (out of 21,262). More than 40% of Australia's land is classified as desert, but almost all of it is located inland. The Great Sandy Desert is the only one to extend to the coast, forming the long sweep of the Eighty Miles Beach (which is actually 140 miles long).
In which country is Berber the official language? In Morocco. The Berber language is ancient and has 2200 years of written tradition. In 2011 Berber became a constitutionally official language of Morocco, after years of persecution (under the policy of Arabization). There is a movement among speakers of the closely related varieties of Northern Berber to unite them under a standard language.
Which desert is the driest in the world? (non-polar) Atacama. The Atacama is the driest of all deserts, with some places having recorded no rain in living memory. It extends along the Pacific coast, forming a huge strip of arid, hostile beach. The average rainfall in the Antofagasta region is 1 millimeter (0.04 in) per year.