8.1 Forests & Their Role on Earth
Across
- 3. medicine, used by 80% of the world’s people are made from plant species
- 5. cover 1/3 of Earths land
- 7. forests reduce soil erosion and purify water & air
- 9. trees that germinate after a fire
- 12. managed forests or tree farm
- 13. usually burn only undergrowth and leaf litter on the forest floor
- 14. land species
Down
- 1. an uncut or regenerated forest that has not been seriously disturbed by human activities or natural disasters
- 2. this is how forests remove CO2 from the atmosphere
- 4. forests provide raw materials for paper products & fuel
- 6. develop after the trees in an area have been removed by human activities or by natural forces
- 8. intentionally burning a forest
- 10. contain chemicals that serve as the basis for most prescription drugs
- 11. hot fire that leaps from treetop to treetop burning whole trees