CHEMISTRY

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Across
  1. 4. the essential biological process where green plants, algae, and some bacteria convert light energy (sunlight) into chemical energy (glucose
  2. 8. a type of combustion reaction in which a fuel is burnt in a plentiful supply of oxygen
  3. 9. A gas that does not react easily with other substances
  4. 13. colorless, odorless, and tasteless poisonous gas produced by the incomplete burning of carbon-based fuels
  5. 14. the removal of sulfur dioxide from the fumes of power stations
  6. 15. a device for converting polluting exhaust gas from cars into less dangerous emissions
Down
  1. 1. atmospheric gases that trap heat from the sun, warming Earth's surface
  2. 2. Burning with insufficient oxygen
  3. 3. Harmful substances released into the environment
  4. 5. highly filtered, moisture-free compressed air typically used in industrial applications
  5. 6. very tiny solid particles produced during the combustion of fuels
  6. 7. A mixture of gases surrounding Earth
  7. 10. Natural resources that can be replenished
  8. 11. Green pigment in plants
  9. 12. rain that has been more acidic than normal