Question

the melting of permafrost is occurring due to climate change. where is permafrost located? in the tundra in the desert in deciduous forests

Explanation:

Permafrost is permanently frozen ground. Tundra regions have very cold climates which allow permafrost to exist. Deserts are generally hot and dry, not conducive to permafrost. Deciduous forests have seasonal temperature changes and do not have the consistently cold conditions for permafrost.

Answer:

in the tundra