Which feature characterizes the tundra biome?

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Multiple Choice

Which feature characterizes the tundra biome?

Explanation:
In the tundra, the defining feature is permafrost — a layer of permanently frozen ground beneath the surface. This frozen layer limits root growth, prevents deep drainage, and keeps the landscape treeless, with a low, hardy plant community like mosses and lichens. The cold, short growing season and low precipitation reinforce these conditions, not forests or abundant warmth. Tall forests require warmer climates, and high rainfall or tropical insects don’t fit the cold, dry environment of the tundra. Permafrost best explains the environmental setup of this biome.

In the tundra, the defining feature is permafrost — a layer of permanently frozen ground beneath the surface. This frozen layer limits root growth, prevents deep drainage, and keeps the landscape treeless, with a low, hardy plant community like mosses and lichens. The cold, short growing season and low precipitation reinforce these conditions, not forests or abundant warmth. Tall forests require warmer climates, and high rainfall or tropical insects don’t fit the cold, dry environment of the tundra. Permafrost best explains the environmental setup of this biome.

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