Sustainability

123456789101112
Across
  1. 3. a device that points North, South, etc
  2. 5. seriously at risk of extinction
  3. 7. not consistent, able to change
  4. 9. the process of being eroded
  5. 11. a repeated design
  6. 12. the plants of a particular region
Down
  1. 1. related to biology
  2. 2. sunny, rainy, windy, etc
  3. 4. study of the earth
  4. 6. being safe
  5. 8. person who studies science
  6. 10. a living organism that feeds on organic matter