Technically the top layer of permafrost, this is the active layer. IT can melt during the summer but refreeze during the winter. The lower layer is always frozen, however.
A tundra is an arctic plain with a sub-layer of permafrost.
Permafrost
The first is world-wide changes in climate caused by global warming. The second is a frozen layer of ground.
the layer above the earth is the troposphere
The Earth layer known as the lithosphere consists of the crust and uppermost mantle. There is no solid layer above the lithosphere.
No it has a layer of soil above it
A tundra is an arctic plain with a sub-layer of permafrost.
I think grass covers a layer of permafrost because it bigger
Permafrost
Permafrost
Permafrost
The permanently frozen layer of earth is called 'permafrost'. Please ensure you use a current referent when describing permafrost extent, since permafrost borders are rapidly changing in both directions.
Permafrost Permafrost ,,
Permafrost is used for the continually frozen layer of soil underneath Earth's surface in high latitudes.
permafrost
permafrost!
Permafrost