Back to quiz

6. Why have salmon numbers been dropping in the above river?

  • Over fishing
  • Aquaculture
  • Parasites
  • Dams
  • Llamas

7. How many acres have been destroyed by beetles?

  • 4,000,000 acres
  • 40 acres
  • 4,000 acres
  • 400,000 acres
  • 40,000,000 acres