Deserts

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  • Created by: Sataramay
  • Created on: 29-04-15 21:42
Environments are classed as arid when they have how much rainfall?
250mm or less
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what classes an environment as semi-arid?
250-500mm
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Name a cold desert?
Gobi Desert Asia
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Where are most deserts and desert margins found?
-Around 30 degress north and south of the equator. - in the middle of continents. - next to mountain ranges. - near cold ocean currents
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what is the mean annual temperature in hot deserts?
20 - 30 degrees C
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what are the large variations in the desert temperature due to?
large variations are due to dry desert air which can't block sunlight during the day and can't trap heat at night
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What variety of vegetation can you get?
(none = sand and stones) variety = shrubs, grasses and cacti species
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whats wrong with desert soil?
not very fertile - not much organic matter. Few plants grown there. Often sandy soils or stony. Very dry, not much water and high temperatures.
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What is biomass stand for?
the total amount of living matter in the area.
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name a desert example for: a). 30 degress north/south equator b). middle of continents c). next to a mountain range d). near a cold ocean current
a). Sahara desert b). Turkestan c). Atacama desert d). Namib desert
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Other cards in this set

Card 2

Front

what classes an environment as semi-arid?

Back

250-500mm

Card 3

Front

Name a cold desert?

Back

Preview of the front of card 3

Card 4

Front

Where are most deserts and desert margins found?

Back

Preview of the front of card 4

Card 5

Front

what is the mean annual temperature in hot deserts?

Back

Preview of the front of card 5
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