environmental issues

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Across
  1. 3. Knowing, informed about problems or factd
  2. 4. Very precious, important and useful
  3. 5. Long-term changes in Earth's weather patterns
  4. 8. Exhaustion of natural resources
  5. 11. Complete disappearance of animal species from the face of the Earth
  6. 12. No longer existing; a species that does not exist anymore
Down
  1. 1. Hazardous waste produced by nuclear plants
  2. 2. Unwanted or discarded materials
  3. 6. Excessive use of resources, often leading to their exhaustion
  4. 7. Contamination of the environment by harmful substances
  5. 9. The variety of life in all its forms and interactions
  6. 10. Large-scale loss of forest cover