Across
- 3. the variety
- 5. a biological community of interacting organisms
- 6. the action of causing so much damage
- 7. the science of farming
- 10. the action of treating someone unfairly
- 11. the weight of a living organisms
- 12. the animals species has died out
Down
- 1. being populated with large numbers
- 2. the remains of a prehistoric organisms
- 4. the action of clearing a wide area of trees
- 8. change a change in global climate patterns
- 9. a period of ten years