Across
- 4. the study our planet's natural systems
- 7. an english scientist who invented an instrument to detect CFC's
- 9. the continent where they found the ozone hole
- 10. ozone is made of three of this element
- 12. the type of resources that are naturally formed more slowly than we use them
- 13. the radiation that is absorbed by ozone
- 14. the part of the atmosphere that the CFC's were rapidly destroying
- 16. the type of cancer that occurs from UV rays
- 17. this is what it is called when the ozone layer becomes dangerously thin
Down
- 1. the last name of the Dutch scientist that began to investigate and form hypotheses in the 1960's and 70s
- 2. these interact with living things in the environment
- 3. the revolution in human population growth that began in the early 1700's
- 5. the revolution that occured about 10,000 years ago
- 6. social movement dedicated to protecting the natural world
- 8. also called CFC's
- 11. the type of resources that are replenished over short periods
- 15. this type of renewable natural resource is only used in the day time when the sun is out
- 18. a naturally occurring molecule that absorbs and redirects harmful radiation