Answer:
A) Southwestern United States-Desert
B) Central United States- Grassland
C) High mountain ranges- Alpine
D) Alaska and Northern Canada-Tundra
E) Eastern United States- Deciduous forest
Explanation:
The Southwest of the United states, in states like California, New Mexico, Arizona and Texas are where the main desert of the country is located, the ecosystem is dry, precipitation is rare to occur which makes it difficult for vegetation and animals to grow.
The grasslands in central united states are areas where vegetation is dominated by grass, they are not too humid, nor too dry.
Alpine is the ecosystem that can be found only in high mountains, oxygen is less available and humidity is also low, adding to this, it tundra-like cold, not allowing many animals to prosper and limiting vegetation to small species.
The word tundra comes from the Russian and literally means land with no trees, it is often cold and near the poles and this conditions make it hard for large trees to grow.
The deciduous forest are found in areas with warm moist summers and cold winters, this kind of forests usually grow their leaves on spring and summer to loose them all by winter and start again, they can be found in eastern United States.
