Crossword

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Across
  1. 3. Greenhouse Gases
  2. 4. extraction
  3. 6. populations
  4. 10. Water Scarcity
  5. 11. Theory
  6. 12. view
Down
  1. 1. Theory
  2. 2. Water Scarcity
  3. 5. resource
  4. 7. Climate Change
  5. 8. populations
  6. 9. Security