Across
- 7. does not involve the atmosphere
- 12. meteors burn here
- 13. dentrification is the opposite process.
- 14. barometer measures it
- 17. protects earth's surface
- 18. chemical compound containing chlorine, fluorine, and carbon
- 19. N2-NH3-NO2-NO3
- 20. causes phosphorus to enter water
Down
- 1. when burned it releases carbon dioxide into the atmosphere
- 2. aurora borealis is located here
- 3. closest to the earth
- 4. impacts wind patterns
- 5. transfer of heat in a fluid
- 6. phased out ozone-depleting substances
- 8. dominant west to east winds
- 9. divided into imaginary layers
- 10. ratio of water vapor in the air
- 11. contains the ozone layer
- 15. process where earth's crust rises vertically
- 16. caused by the unequal heating of the earth