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The Arctic Tundra

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by

Julian W.C.

on 5 September 2013

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Transcript of The Arctic Tundra

The Arctic Tundra
By: Julian Wagner,
George Polski,
and Chandhana Voleti

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The arctic tundra is in many different places throughout the world.
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This climate contributes to the development of landforms unique only to the tundra. Ground moisture is unable to evaporate due to temperature range and is prohibited from being absorbed into the soil because of the presence of permafrost -- a layer of permanently frozen soil. A layer of soggy topsoil cyclically freezes and thaws, giving rise to a number of interesting landforms.
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The climate of the tundra varies during the year.
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In the summer, the sun is present almost 24 hours a day. This sun however, only warms the tundra up to a range of about 3°C to 12°C. In the winter, it's the opposite of the summer. The average temperature of the tundra is around -28°C while extremes can dip to -70°C.
Precipitation levels in the tundra are from 6 to 10 inches a year. Most of this falls as snow. Something that many people might find unusual given the lack of rain or snow is the presence of a lot of standing water. This is the result of the permafrost. The water will not soak into the ground however, because the permafrost blocks it. Very little moisture is lost to evaporation.
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There are around 1700 species of plants that live in this zone. There are almost no reptiles or amphibians. There are only 48 land mammals that make this habitat their home.
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The Food Web of the Tundra involves all the animals and plants and connects them in natures way
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Chandhana V.
Julian W. C.
George P.
-Arctic National Wildlife Refuge in Northern Alaska
-Greenland
-Iceland
-Northern Sweden, Norway, and Finland
People go to he tundra usually to hike, look at wildlife, and to go river floating.
Tundra- Treeless Plain
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Permafrost- soil below the surface. It's always frozen.
Carrying Capacity- the equilibrium number of organisms of a particular species that can be supported indefinitely in a given environment.
-pingos
-frost boils
-bumpy ground
-polygons
-stripes
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-nickel
-copper
-coal
-gold
-uranium
-tungsten
-diamonds
-iron
-natural gas
-oil
Full transcript