What makes the Sahara the largest desert in the world?
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Answers
Answer:
The rest of Earth's deserts are outside of the polar areas. The largest is the Sahara Desert, a subtropical desert in northern Africa. It covers a surface area of about 3.5 million square miles. A list of more than twenty of the largest non-polar deserts can be found below.
Deserts are not defined by hot temperatures and sand dunes. Rather, deserts are defined by a very low amount of rain and snow. These low amounts of precipitation lead to very little liquid water on the ground. As a result, deserts are identified by significantly low amounts of animal and plant life.
Answer:
Non-Polar Deserts
The rest of Earth's deserts are outside of the polar areas. The largest is the Sahara Desert, a subtropical desert in northern Africa. It covers a surface area of about 3.5 million square miles. A list of more than twenty of the largest non-polar deserts can be found below.
Explanation:
The rest of Earth's deserts are outside of the polar areas. The largest is the Sahara Desert, a subtropical desert in northern Africa. It covers a surface area of about 3.5 million square miles. A list of more than twenty of the largest non-polar deserts can be found below.The Desert Environment
When most people think of a desert, they imagine a landscape covered with sand and sand dunes. Although many deserts are sand-covered, most are not. Many desert landscapes are rocky surfaces. They are rocky because any sand-size or smaller particles on the surface are quickly blown away. Rocky deserts are barren wind-swept landscapes.
Most deserts receive so little precipitation that surface streams usually only flow immediately after rainfall - unless the stream has a source of water outside of the desert. Streams that enter a desert usually suffer major water losses before they exit. Some of the water is lost to evaporation. Some is lost to transpiration (taken up by plants and then released to the atmosphere from the plants). And, some is lost to infiltration (water soaking into the ground through the bottom of the stream channel).
Desert Fauna and Flora
The plants and animals that live in a desert must be adapted to the environment. Plants must be very tolerant to intense sun, prolonged periods without precipitation, and have an ability to prevent moisture loss to conditions of severe temperature ranges, dry winds, and low humidity.
Animals must be able to tolerate temperature extremes, temperature ranges, and have an ability to survive with very little water. Many animals adapt to desert conditions by living underground and being active at night.
Major Deserts of the World
Name Type of Desert Surface Area Location
Antarctic Polar 5.5 million mi² Antarctica
Arctic Polar 5.4 million mi² Alaska, Canada, Greenland, Iceland, Norway, Sweden, Finland, Russia
Sahara Subtropical 3.5 million mi² Northern Africa
Arabian Subtropical 1 million mi² Arabian Peninsula
Gobi Cold Winter 500,000 mi² China and Mongolia
Patagonian Cold Winter 260,000 mi² Argentina
Great Victoria Subtropical 250,000 mi² Australia
Kalahari Subtropical 220,000 mi² South Africa, Botswana, Namibia
Great Basin Cold Winter 190,000 mi² United States
Syrian Subtropical 190,000 mi² Syria, Iraq, Jordan, Saudi Arabia
Chihuahuan Subtropical 175,000 mi² Mexico
Great Sandy Subtropical 150,000 mi² Australia
Kara-Kum Cold Winter 135,000 mi² Uzbekistan, Turkmenistan
Colorado Plateau Cold Winter 130,000 mi² United States
Gibson Subtropical 120,000 mi² Australia
Sonoran Subtropical 120,000 mi² United States, Mexico
Kyzyl-Kum Cold Winter 115,000 mi² Uzbekistan, Turkmenistan, Kazakhstan
Taklamakan Cold Winter 105,000 mi² China
Iranian Cold Winter 100,000 mi² Iran
Thar Subtropical 75,000 mi² India, Pakistan
Simpson Subtropical 56,000 mi² Australia
Mojave Subtropical 54,000 mi² United States
Atacama Cool Coastal 54,000 mi² Chile
Namib Cool Coastal 13,000 mi² Angola, Namibia, South Africa...
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