Across
- 1. level / Level of sea surface.
- 4. / Capable of being renewed.
- 5. / Opposite of cool.
- 6. warming / What is it called when the earth atmospheres gradually rises?
- 8. / What is the intensity of heat in a substance?
- 11. / What’s the state of being humid?
- 13. / Substance that is harmful to the environment.
- 15. / _______ resources.
Down
- 1. / What is the star that the earth orbits?
- 2. gases / What gases contributes to the greenhouse effect?
- 3. / _______ change?
- 7. / What’s it called when rain falls from the sky?
- 9. / What are the surroundings called that people, animals and plants live in?
- 10. dioxide / Meaning of CO2
- 12. caps / Polar ___ ____?
- 14. / What is the 3rd planet from the sun?