Earth day

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Across
  1. 3. unwanted matter of material of any type
  2. 8. strong and dangerous gas; smoke
  3. 9. number and variety of plant and animal species in a particular area
  4. 10. bad for the soil and vegetable you make there
Down
  1. 1. gradual increase in world temperatures caused by pollution gasses
  2. 2. damage cause to environment
  3. 4. earth day is in month
  4. 5. collecting and treat rubbish to produce useful materials
  5. 6. extra large wave
  6. 7. rain contains amount of harmful chemicals