Question

whenis cut or destroyed it affects the permafrost​

Answer 1

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When permafrost is frozen, it's harder than concrete. However, thawing permafrost can destroy houses, roads and other infrastructure. When permafrost is frozen, plant material in the soil—called organic carbon—can't decompose, or rot away. As permafrost thaws, microbes begin decomposing this material.

Answer 2

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When permafrost is frozen, it's harder than concrete. However, thawing permafrost can destroy houses, roads and other infrastructure. When permafrost is frozen, plant material in the soil—called organic carbon—can't decompose, or rot away. As permafrost thaws, microbes begin decomposing this material.