By Michael Allaby

Lifestyles within the desolate tract holds a variety of organic variations. From camels to abandon scorpions to snakes, the biodiversity of those parts is interesting. "Deserts" provides the intricacies of this possible barren and cruel surroundings, explaining how and why deserts shape, the place they're stumbled on on the earth, and their uncomplicated features. Chapter-by-chapter assurance describes the fauna of the barren region, the heritage of those habitats, the connection of humanity to the deserts, the weather of barren region components, subtropical and polar deserts, and extra. "Deserts" concludes with chapters on wasteland industries and threats to this atmosphere, together with weather switch, the spreading of deserts, overgrazing, and water depletion. New advancements for handling the deserts also are mentioned.

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The North American deserts, shown on the map above, are produced in this way, by air that has crossed the cool California Current. The Colorado Desert is part of the Sonoran Desert, also called the Yuma Desert and the Desierto de Altar. The Sonoran Desert covers 120,000 square miles (310,800 km2). Most of the area is low-lying. The bed of the Salton Sea, a brackish lake in the Colorado Desert, is 235 feet (72 m) below sea level, but the average elevation in the Sonoran Desert is 1,000 feet (305 m).

By the time the air reaches Patagonia it is able to deliver only a very small amount of rain. Deserts in the subtropics more often form on the western sides of continents. This is because there the prevailing winds blow toward the equator, bringing cool, dense air that remains close to the ocean surface and prevents moist air from rising and forming clouds. During the day, the land warms up rapidly, but the sea remains cool. Warm air rises over land and cooler air blows in from the sea to replace it.

About 50 million years ago, during the period of the Earth’s history known as the Eocene epoch, India, traveling northward on the Indian Plate, crashed into the southern edge of the Eurasian Plate. Continents are made from rocks that are less dense than the rocks forming the ocean floor. Consequently, when two continents collide it is impossible for one plate to sink beneath the other, because both plates are equally buoyant. Instead, the two sections of continental crust crumple upward, usually with one plate riding over the other.

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Deserts (Biomes of the Earth) by Michael Allaby


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