Across
- 2. flows downhill because of gravity
- 3. too much use of natural resources
- 5. Course or path of body of a river
- 6. falling of debris from mountains
- 8. thickest layer of rainforest
- 9. extraction of metals from deep down the earth
- 10. small spurs
- 12. the largest rainforest found in Brazil
- 13. sessile invertebrates with exoskeletons
Down
- 1. stony corals
- 4. located between the tropic cancer and capricorn
- 7. illegal cutting of trees
- 11. getting the resources on the top layer