Crossword Trivia

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Across
  1. 2. - Reducing carbon footprint by planting trees
  2. 3. - Fuel made from plants
  3. 5. - Greenhouse gas produced by cattle
  4. 7. - Process of turning waste into reusable material
  5. 9. - Waste material that is harmful to the environment
  6. 10. - The practice of reusing materials
Down
  1. 1. - Substance that contaminates air, water, or soil
  2. 4. - The thin layer of gases that surround Earth
  3. 6. - Energy source from the sun
  4. 8. - Body of water that covers much of the Earth's surface