what causes pollution?

12345678910
Across
  1. 1. burn down forests
  2. 4. black gold
  3. 5. building buildings
  4. 7. what you put in a trash can
  5. 8. weed killer and bug repellant
  6. 10. can be found in Hawaii
Down
  1. 2. where products are made
  2. 3. everything comes in...
  3. 6. waste
  4. 9. automated transportation