Across
- 4. An area that is populated mostly by grasses and other nonwoody plants.
- 5. a layer of shorter trees and vines.
- 9. the tallest layer of the rain forest which receives the most sunlight and can reach up to 70 meters.
- 10. Extremely col and dry.
- 13. trees that produce their seeds in cones and have leaves shaped like needles.
- 14. a group of ecosystems with similar climates and organisms
Down
- 1. an area that receives less than 25 centimeters of rain per year.
- 2. trees up to 50 meters tall form this.
- 3. Receives as much as 120 cm of rain each year.
- 6. forests in which large amounts of rain fall year round.
- 7. trees trees that shed their leaves and grow new ones each year.
- 8. frozen soil.
- 11. the average annual temperature and amount of precipitation.
- 12. forest dense forest found in upper regions of northern hemisphere.