Question

What type of vegetation is found in hot and cold desert? Why?

Answer 1

Answer:

Deserts are dry. The most often cited desert definition is that it is a place that receives less that 10 inches (25 centimeters) of rainfall annually, but some scientists consider twice that amount of rainfall to qualify a region as a desert. According to the latter definition, the Great Basin of North America, which includes parts of Utah, Nevada, Oregon, California, Wyoming and Idaho, qualifies as a cold desert. Some cold deserts are really dry, though. The Atacama desert, the driest desert on Earth, receives only 0.004 in (0.01 cm) of rain every year. That's hardly enough to even measure.

Grasses are the most common vegetation in cold deserts. They tend to grow in clumps known as bunchgrass. Shrubs and brush plants also cover the terrain, such as the sagebrush common in the Great Basin. One of the most interesting, welwitschia (Welwitschia mirabilis), is a unique two-leaved shrub that grows in the Namib Desert in southeastern Africa. It produces colorful cones and grows to heights between 1/2 and 2 meters.

Trees are few, but they do exist. A type of acacia, known as camel thorn (Acacia erioloba) grows in the Gobi desert, and the saxaul tree (Haloxylon ammodendron), a small and bushy tree, grows in the Turkestan desert. Pistachio trees (Pistacia vera) are common in the Iranian desert, and tamarugo trees (Prosopis tamarugo), which produce an edible fruit, grow in the Atacama. Cactus species aren't as common in the cold deserts as they are in the hot ones, but the giant cardon cactus (Pachycereus pringlei) also grows in the Atacama.

Explanation:

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