Permanently frozen soil anywhere is called permafrost.
Taiga
what is a vast flat treeless region in which the subsoil is permanently frozen is called
That's called the 'permafrost'.
A vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen.
The permanently frozen subsoil in the tundra is called permafrost. It consists of soil, rocks, and sediment that remain frozen for at least two consecutive years. Permafrost plays a crucial role in the tundra ecosystem and its stability is being affected by climate change.
Permafrost
permafrost. It is primarily found in the Arctic regions of Asia, such as Siberia and parts of Alaska, Canada, and Greenland. Permafrost plays a critical role in shaping the landscape and preserving ancient organic matter.
Tundra is a vast,flat,treeless Arctic region of Europe,Asia,and North America in which the subsoil is permanently frozen.
permafrost.
Permafrost.
This is called permafrost, where soil, rock, or sediment remains below freezing temperatures for two or more consecutive years. It can be found in polar regions or high mountain ranges where the ground is permanently frozen.
A vast, treeless region with permanently frozen subsoil is called tundra. This biome is typically found in high latitudes or high altitudes and experiences extreme cold temperatures, resulting in a layer of permafrost beneath the surface that remains frozen year-round.