Across
- 2. the variety of living things in a region
- 3. a resource that cannot be replaced in a short period of time
- 5. the loss of forest in a region caused by humans
- 7. the effect on someone or something not involved in an activity
- 8. every material produced by nature that we use
- 9. formed over millions of years ago from the remains of animals and plants used as fuels
Down
- 1. a resource that earth or people can replace
- 4. planting a large amount of trees to restore a forest
- 6. waste that contaminates the air, water, and soil