Across
- 1. resources faster than they can regenerate (18 letters)
- 4. Clues
- 5. where plants make oxygen (14 letters)
- 6. land becomes desert-like (16 letters)
- 7. large numbers of people due to crisis (4 letters + 9 letters)
- 8. habitats are divided into smaller pieces (13 letters)
- 9. nature provides for regulating climate, water, etc. (10 letters + 8 letters)
- 11. ability to recover from damage (10 letters)
- 12. in number and variety of species (12 letters + 4 letters)
Down
- 2. Solve these crossword-style clues using the vocabulary list.
- 3. harmful organisms (abbr. 3 letters)
- 10. of genes in a population (17 letters)