Across
- 2. trees
- 5. the total of all products
- 7. hunting fish
- 8. second main producer
- 10. all resources on earth
- 12. people who protect enviornments
- 13. third main producer
Down
- 1. main industry
- 3. fossil fuels
- 4. comes from trees
- 6. main producer
- 9. farming
- 11. cultivation or farming in an area