Across
- 3. Causing global average temperature to rise
- 6. Happened to the atmosphere of Venus
- 7. Greenhouse gas
- 11. When this happens, CO2 level build up and the planet warms
- 13. Layer of atmosphere where molecules can escape into space
- 14. Heated by UV light
- 16. Lowest layer of atmosphere
- 17. Frozen CO2
- 19. Greenhouse gas emitted by cows
- 20. Layer of gas surrounding a planet
Down
- 1. A method by which a planet gains atmosphere
- 2. Gases that are good at absorbing infrared radiation
- 4. Part of the thermosphere that contains ionized gas
- 5. Charged particle belts encircling Earth
- 8. Greenhouse gas
- 9. Protective bubble surrounding Earth
- 10. Between the stratosphere and exosphere
- 12. Day to day temperature, pressure, clouds, etc.
- 15. Unit of atmospheric pressure
- 18. Long term trends in weather