Deserts of the world
Help Box- Patagonian desert , Atacama desert , Antarctica desert , Simpson Desert
1. It is the largest desert in the Americas and is the 5 largest desert of the world br area?
2. A large area region of Western United States. In 1986 the national park was established here by Federal government, encompassing using 122 square miles of land in Nevada, near the Utah Border?
3. Though you wouldn't expect this in the list of deserts, since there is a little precipitation except at the coasts, at the interior of this land mass is technically the largest desert in the world and there is no evidence of any existing or pre-historic indigenous population?
4. Located in South America. This is the driest place in world?
Answers
Answer:
A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to the processes of denudation. About one-third of the land surface of the world is arid or semi-arid. This includes much of the polar regions, where little precipitation occurs, and which are sometimes called polar deserts or "cold deserts". Deserts can be classified by the amount of precipitation that falls, by the temperature that prevails, by the causes of desertification or by their geographical location.
Deserts are formed by weathering processes as large variations in temperature between day and night put strains on the rocks, which consequently break in pieces. Although rain seldom occurs in deserts, there are occasional downpours that can result in flash floods. Rain falling on hot rocks can cause them to shatter, and the resulting fragments and rubble strewn over the desert floor are further eroded by the wind. This picks up particles of sand and dust and wafts them aloft in sand or dust storms. Wind-blown sand grains striking any solid object in their path can abrade the surface. Rocks are smoothed down, and the wind sorts sand into uniform deposits. The grains end up as level sheets of sand or are piled high in billowing sand dunes. Other deserts are flat, stony plains where all the fine material has been blown away and the surface consists of a mosaic of smooth stones. These areas are known as desert pavements, and little further erosion takes place. Other desert features include rock outcrops, exposed bedrock and clays once deposited by flowing water. Temporary lakes may form and salt pans may be left when waters evaporate. There may be underground sources of water, in the form of springs and seepages from aquifers. Where these are found, oases can occur.
Explanation:
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Answer:
Patagonia Desert Is Most Of The Dangerous And Huge Deseart and Most Important Is Than Shara is an Most Of The Huge Deseart