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The Desert Biome

The Desert Biome. By: Sarah Pollack. What is a Desert? . A Desert is a biome in which the temperature is normally very high, and receives very little precipitation. Deserts take up about a third of the earths land mass.

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The Desert Biome

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  1. The Desert Biome By: Sarah Pollack

  2. What is a Desert? • A Desert is a biome in which the temperature is normally very high, and receives very little precipitation. • Deserts take up about a third of the earths land mass. • Many Deserts are formed by rain shadows, which are mountains blocking the path of precipitation, which causes the lack of moisture in the region. • They are often composed of rock and sand. • Soil is rocky because of low chemical weathering.

  3. What can survive in the Desert? • Many organisms cannot live in the desert because of its harsh climate and lack of water, and precipitation. However there are many organisms that can sustain the weather, like kangaroo rats, coyote, jack rabbits, and lizards. Animals that can survive in the desert are known as xerocoles. The desert can also supports limited plant-life like Desert Holly, Prickly Pears, cactus, and many other plants.

  4. What is the climate like? • The seasons are generally warm throughout the year and very hot in the summer. The winters usually bring little rainfall. Sometimes rain starts falling and evaporates before reaching the ground. Rainfall is lowest on the Atacama Desert of Chile, where it averages less than 1.5 cm. Some years are even rainless. Inland Sahara also receives less than 1.5 cm a year. Rainfall in American deserts is higher at almost 28 cm a year. • Soils are textured, shallow, rocky or sandy with good drainage and have no subsurface water.

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