Block 4 2020 Chen

12345678910111213141516171819202122
Across
  1. 2. water
  2. 7. sunlight reflecting off of ice
  3. 8. heat moving in waves
  4. 9. carbon dioxide
  5. 11. the layer of the atmosphere that is above the troposphere; as the altitude increases, the temperature increases
  6. 15. the layer of atmosphere between the stratosphere and the thermosphere; the temperature decreases as the altitude increases
  7. 16. when humans harvest goods
  8. 18. Human-induced changes on the natural environment
  9. 20. when humans ruin their environment
  10. 21. when too many trees are cut
Down
  1. 1. when plants make good
  2. 3. scientists belive this about global temperature
  3. 4. Satellites orbit earth in this layer, space shuttles, aurora borealis, temperature increases with height
  4. 5. source of ice cores
  5. 6. allow sunlight tot reach eartht's surface
  6. 10. the lowest layer of the atmosphere; as the altitude increases the temperature decreases
  7. 12. the uppermost layer of the atmosphere; the temperature increases as the altitude increases
  8. 13. Oxygen
  9. 14. hydrogen
  10. 17. colorless gas
  11. 18. warm ocean temps send carbon dioxide here
  12. 19. fuels formed from the decomposition of long ago living organisms.
  13. 22. Nitrogen