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Across
  1. 2. Solid fossil fuel
  2. 5. Throwing rubbish in places where we should not
  3. 7. Run out
  4. 8. Cutting down large area of trees
Down
  1. 1. Substance that can harm our environment
  2. 3. Used to make concrete for building house
  3. 4. Coal is found in the _____
  4. 5. Fossil fuels are found in the ground in _____ amounts
  5. 6. Soil carried from one place to another
  6. 9. Liquid fossil fuel