climate change
Across
- 5. an effect that traps the heat generated by the sun
- 7. a permanent gas
- 9. the area of greatest warming
- 11. a chemical element
- 12. study of changing the natural process of earth
- 14. a species becomes fitted to its environment
- 16. temperature data
- 17. measure of hotness or coldness
- 18. relating to the whole world
- 19. darker areas on the sun's surface
Down
- 1. eruptions that release sulfur dioxide
- 2. contains the air we breathe and weather
- 3. thin layer of gasses that surrounds the earth
- 4. huge body of salt water
- 6. very dry and less dense than troposphere
- 8. the mass of a unit
- 10. long-term weather pattern in a region
- 12. period where glaciers are growing and advancing
- 13. earth's surface temperature is lowered
- 15. a variable gas