Vegetation zones

2. An acidic, layered soil typical of coniferous forests
3. The richness of nature
7. The division of vegetation into different height layers
9. A tropical grassland
12. A cold, treeless region
13. The edge of the habitat at high latitudes or altitudes beyond which trees are unable to grow
14. stays green all year around
15. An extremely dry area
17. Plants found in regions with hot, dry summers and mild rainy winters

1. The northern forest zone characterized by needle-leaf trees
2. Ground that remains frozen throughout the entire year
4. Plants that change in distinct zones as you move higher up a mountain
5. A woody climbing plant
6. It rains almost everyday
8. A zone dominated by broadleaf trees
10. The process by which fertile or semi-dry land becomes desesrt, often due to climate change or human activity
11. A plant that is green in the summer but sheds its leaves in the winter
16. A vast, treeless grassland