In which biome would permafrost be a typical characteristic? 

A)  coniferous forest 
B)  desert 
C)  taiga 
D)  arctic tundra

Permafrost

A thick subsurface layer of soil that remains frozen throughout the year, occurring chiefly in polar regions.

Arctic Tundra

A cold, treeless region where the subsoil is permanently frozen, found in the Arctic circle.

Coniferous Forest

A biogeographic zone dominated by cone-bearing trees, such as pines, spruces, and firs, typically found in northern latitudes where temperatures can be cold.