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A desert is a barren area of land where little precipitation occurs and consequently living ... Other desert features include rock outcrops, exposed bedrock and clays ... Many are nocturnal and stay...

desert - National Geographic Society


Oct 19, 2011 ... The Ghaggar River, in what is now India and Pakistan, was a major water source for ... Temperature extremes are a characteristic of most deserts. .... Besides animals like camels and goats, a variety of desert vegetation is ...

Types of Deserts


Oct 29, 1997 ... Most of the major deserts of the world lie in areas crossed by the trade winds. ... on the left. Winds will shortly cover or remove these features. ... Temperature changes in polar deserts frequently cross the freezing point of water.

Introduction to major patterns of global climate and vegetation


The relatively great heating of the earth's surface around the equatorial belt sets up a ... Thus, most of the world's deserts are to be found at 20-30°N. and 20-30°S. latitude, ... These major features of earth's climate are shown in the map below. ..... the dought; and by accessing other sources of water besides local rain...

Desert Plants - Blue Planet Biomes


Maybe it's sand, heat, or Gila monsters, but most likely it's cactus. Cacti are probably the most memorable characteristic of the desert. In all of the Speedy ...

Chapter I. The arid environments


Aridity is usually expressed as a function of rainfall and temperature. ... Three major types of climate are distinguished when describing the arid zone: the ... regimes, soil and topographic features, and vegetative characteristics of the area. ..... Arid zone vegetation is classified as desert (less than 100 millimeters of rainfall ...

Desert Adaptations of Birds and Mammals


Large mammals do not burrow to escape the desert heat. The kit fox .... There are many other animals besides rodents that get most of their water from food.

Desert Ecosystem: Types, Characteristic, Structure and Function of ...


Desert Ecosystem: Types, Characteristic, Structure and Function of Desert ... At night, the desert gets very cold, because there aren't clouds around to keep the heat ... Besides them, some rodents, birds and some mammalian vertebrates are  ...

Biomes & Communities of the Sonoran Desert Region


These adjacent geographical features and biological communities exert ..... Besides the heat it creates, the intense sunlight in arid lands is itself a challenge. ... North America has four major deserts: Great Basin, Mohave, Chihuahuan and  ...

Deserts of the World | The 7 Continents


Exlpore the desert of the world map with information on each subtropical, cool, coastal, and artic desert. ... The weather there is characterized by extreme heat and cold. .... The Namib features gravel plains, mountains, and sand dunes. .... Today, only two major polar deserts remain, but they account for a significant share of ....

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Desert Features


Oct 29, 1997 ... Sand covers only about 20 percent of the Earth's deserts. Most of the sand is in sand sheets and sand seas--vast regions of undulating dunes ...

The desert biome - University of California Museum of Paleontology


Desert biomes can be classified according to several characteristics. ... The four major North American deserts of this type are the Chihuahuan, Sonoran, ... solar radiation received by humid regions and lose almost twice as much heat at night.

20 Amazing Animal Adaptations for Living in the Desert | Mental Floss


Jun 13, 2014 ... Without the benefit of modern technology, animals that make their home in the heat have had to come up with their own ways of staying cool ...