1AB 2020 Mastbrook

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Across
  1. 3. many plants and animals are heading away from the equator towards the poles because of the greater amount of __________ in our atmosphere
  2. 6. more co2 in the water causes the water to become more ______
  3. 10. the effect of icecaps melting
  4. 11. a very potent greenhouse gas mainly produced by cows
  5. 14. the heating of the earth's surface
  6. 15. the layer where asteroids burn up
  7. 17. a greenhouse gas that comes from many home appliances like the fridge and also was in most spray cans
  8. 18. _______ decreases with altitude
  9. 19. formula for methane
  10. 20. a gas that protects us from UV and other deadly rays
  11. 23. _______ becomes more intense the hotter the earth gets
  12. 24. the cutting down of forests
  13. 25. humans ____ for fossil fuels which also has a carbon footprint to it
Down
  1. 1. ___________ varies with altitude
  2. 2. when the act of letting animals graze on land until it dies
  3. 4. a greenhouse gas that we drink
  4. 5. the most common gas in our atmosphere
  5. 7. dead plants and animals that release co2 once they are burned
  6. 8. layer where the ozone is held
  7. 9. humans burning fossil fuels creating great amounts of co2 and greatly adds to the _______ of the earth
  8. 12. the layer where weather happens on earth
  9. 13. the third most prevalent gas in our atmosphere
  10. 16. water vapour is also known as
  11. 17. the most common greenhouse gas
  12. 21. a type of gas that humans need to live
  13. 22. the hottest layer of our atmosphere