Geography crossword

2. Northernmost vegetation found in areas too cold for trees to grow. Bushes, grasses, mosses and similar plants dominate
4. A flat area at a high elevation
7. Somewhat salty
8. Climate that has warm summers and cool winters
9. Area on the Leeward slope of mountains with little precipitation
11. Northern or the Arctic

1. The usuall shape of a tornado;a tube of winds spiraling at high speeds
3. A climate that is strongly influenced by the closeness of a large body of water. The annual temperature tends to be small and precipitation is high
5. A level bog or swamp found in Canada
6. A mass or fluid of air that whirls in a rotary direction
10. A place in which liquid collects