Match the ecosystem to its description or example.

1. Desert

receives less than ten inches of rain annually

2. Forest

much of this ecosystem has been converted to farms

3. Grassland

estuaries, coral reefs

4. Tundra

world's largest ecosystem

5. Freshwater

wetlands, rivers, lakes

6. Marine

ecosystem with the harshest climate

1. Desert

is usually cold at night and receives very little rainfall.

2. Forest

Most of Washington State and Canada

3. Grassland

The Greats State of Wyoming

4. Tundra

a major zone of treeless level or rolling ground found in cold regions

5. Freshwater

waterfalls, ice caps, rivers

6. Marine

Marine ecosystems are among the largest of Earth's aquatic ecosystems