Across
- 5. a colorless odorless gas used as a fuel
- 7. the atmospheric layer between the mesosphere and the exosphere
- 10. heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis
- 11. the outer region of the Earth's atmosphere
- 15. nonrenewable energy resource, such as oil and coal
- 17. the outermost atmospheric layer
- 19. heat source for the stratosphere
- 20. force from a column of air pressing down
- 22. the atmospheric layer between the stratosphere and the thermosphere
- 23. area of strong winds near the top of the troposphere
- 25. a rise in the average temperature of the earth's atmosphere
Down
- 1. atmospheric layer between the troposphere and the mesosphere
- 2. energy from the Sun that is clean, inexhaustible, and can be transformed into electricity by solar cells.
- 3. atmospheric conditions such as temperature and precipitation
- 4. layer of the stratosphere that absorbs harmful radiation from the Sun
- 6. the part of the Earth's surface forming a cap over a pole
- 7. the lowest atmospheric layer; from 4 to 11 miles high
- 8. energy transferred by waves or rays
- 9. warming when solar radiation is trapped by the atmosphere
- 10. the weather in some location averaged over a period of time
- 12. produced during photosynthesis
- 13. liquid fossil fuel formed marine organisms that is burned to obtain energy and used in the manufacture of plastics.
- 14. sedimentary rock formed from decayed plant material; the worlds most abundant fossil fuel.
- 16. the envelope of gases surrounding any celestial body
- 18. a gas that contributes to the greenhouse effect by absorbing infrared radiation
- 21. a colorless gas that is a screen for ultraviolet radiation
- 24. the particles spiral along magnetic field lines toward the poles