Across
- 3. a naturally occurring gas mixture extracted by drilling beneath the earth
- 6. natural fuels formed in geological past from remains of living organisms
- 9. a greenhouse gas formed through evaporation
- 11. where meteorites burn up
- 13. can be emitted by natural gas leaks
- 14. converted into ammonia for plant nutrients
- 16. when gases trap the sun's heat onto earth's surface
- 19. can be emitted by vehicle exhaust from cars
- 21. where the ozone layer is located
- 23. will burn more intensely due to global warming
- 24. a liquid mixture found in rock formations beneath earth's surface
- 25. produced during photosynthesis
Down
- 1. produced during fossil fuel emissions
- 2. the layer that contains the ionosphere
- 4. a carbonic rock extracted through surface/underground mining
- 5. the large shift in earth's weather patterns due to global warming from the greenhouse effect
- 7. colorful lights caused by solar flares in the thermosphere
- 8. will be more common due to warmer areas for insects to migrate to
- 10. will increase due to more common insect outbreaks
- 12. the outermost layer of the atmosphere
- 15. byproduct of chemical production
- 17. the layer we live in
- 18. the increase in atmosphere temperature due to the greenhouse effect
- 20. the thin part of the atmosphere that protects the earth by absorbing the sun's UV radiation
- 22. a byproduct of oxygen and nitrogen