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2
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ground that remains completely frozen
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4
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simple slow-growing plant that typically forms a low crusty leaflike
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5
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_____is melting because of climate change
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7
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(a land) too poor to produce any vegitation
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1
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a main type of ______ is carbon dioxide
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3
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a vast treeless plain in the Arctic regions where the subsoil is permanently frozen
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6
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People that have always lived in the arctic region
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