the environment

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Across
  1. 2. tropical forests
  2. 5. when there is no rain for a long time
  3. 7. oil, gas, coal
  4. 8. they produce electricity
  5. 9. harmful chemicals in the air and water
  6. 10. CO2
Down
  1. 1. the Earth is getting hotter
  2. 3. tropical storms
  3. 4. cutting down the forest
  4. 6. gases that trap the sun's heat