ECOLOGY
BIOMES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Coniferous Forests receive more precipitation and lack permafrost
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The soil in a tundra is more nutrient-rich
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Only a coniferous forest is found in the northern hemisphere
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Only the tundra has enough vegetation to support animals
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Detailed explanation-1: -The boreal forest is characterized by coniferous trees, while the arctic tundra is characterized by permanently frozen soils.
Detailed explanation-2: -Permafrost is found in places where the average annual temperature is below about 23°F (-5° C), including most of the Arctic and all of Antarctica. Land with underlying permafrost is called tundra. The arctic tundra is stark and treeless.
Detailed explanation-3: -If you dig down through the arctic tundra, you’ll soon strike a rock-like layer of frozen soil. Even on the warmest summer day, this permafrost layer lies anywhere from a few inches to a few feet below the tundra surface, never thawing.
Detailed explanation-4: -Precipitation in the tundra totals 150 to 250 mm a year, including melted snow. That’s less than most of the world’s greatest deserts! Still, the tundra is usually a wet place because the low temperatures cause evaporation of water to be slow.