Environmental Chemistry

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Across
  1. 2. Caused by e.g. sulphur dioxide in the air (4,4)
  2. 6. Gas produced by cows that is in the atmopshere (7)
  3. 7. Finite resources that we burn to give us energy (6,5)
  4. 8. e.g. polymers; often ends up in the ocean (7)
  5. 11. Process of burning, that gives out carbon dioxide (10)
  6. 13. Another word for decay (13)
Down
  1. 1. The element that makes up most of our air (8)
  2. 3. Type of combustion that gives off carbon monoxide (10)
  3. 4. This process takes in carbon dioxide and gives out oxygen (14)
  4. 5. Process that gives out carbon dioxide, as will as energy (11)
  5. 9. Used to be made of mainly carbon dioxide; now has a variety of different gases (10)
  6. 10. Type of effect that traps certain gases on Earth (10)
  7. 12. Made of three oxygen atoms, this is a greenhouse gas (5)