Climate change

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Across
  1. 2. is the amount of chemical in a particular volume or weight of air
  2. 4. warming
  3. 5. is the gaseous envelope surrounding the Earth
  4. 7. and climate are different things
  5. 11. refer to greenhouse gases released into the air that are produced by numerous activities
  6. 13. dioxide is what we exhale
  7. 15. fuels
  8. 17. energy is energy that can’t produce naturally
  9. 18. is a chemical compound that is the main component of natural gas
Down
  1. 1. energy is energy that comes naturally
  2. 2. is the total amount of greenhouse gasses that are emitted into the atmosphere each year
  3. 3. is another name for global warming
  4. 6. is getting higher
  5. 8. gas is a chemical
  6. 9. are being destroyed because of climate change
  7. 10. and oil produces energy
  8. 12. is a cylindral section of ice removed from a glacier or an ice sheet
  9. 13. is the average of weather patterns over a longer period
  10. 14. are gas or liquid fuels made from plant materials
  11. 16. a prolonged period of excessive heat, often combined with excessive humidity