Environmental Alarms

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Across
  1. 4. Harmful gases that cause global warming
  2. 6. Large scale cutting of trees
  3. 7. The removal of species from the face of the Earth
  4. 9. Poisonous substances
  5. 10. Another word for contamination
Down
  1. 1. Decrease of pH value
  2. 2. Earth is ‘too’ full of people
  3. 3. Chemical waste released by factories
  4. 5. Gradual wearing away of soil
  5. 8. ‘Misused’ to make bags and other common substances