What are three vegetation zones in Estonia?

The three vegetation zones in Estonia according to altitude are:

1. Boreal coniferous forest: This zone covers most of the country and is characterized by coniferous trees such as pine, spruce, and fir.

2. Hemiboreal deciduous forest: This zone is found in the southern and western parts of the country and is characterized by deciduous trees such as oak, ash, and linden.

3. Subarctic tundra: This zone is found in the northeastern part of the country and is characterized by low-growing vegetation such as mosses, lichens, and dwarf shrubs.