C2.9 Up to Greenhouse Gases

2. The development of the Earth's atmosphere is a ......, as there is limited evidence.
5. Another name for limestone.
8. Greenhouse gases cause the ......
13. Oceans formed when the Earth's temperature .....
14. Carbon dioxide dissolved in oceans to form .....
15. In the Early Atmosphere, The Earth was covered in ...
18. Using heat to break down a compound.
19. Ammonia reacted with .... to form nitrogen and water.
21. Radiation emitted by the sun.
23. The most abundant gas in the atmosphere today.
26. Volcanoes released: carbon dioxide, water vapour, nitrogen .... and ammonia.

1. This is burned for energy. There are three examples: oil, gas and coal.
3. Greenhouse gas that is released through digestive processes of cows.
4. The most abundant gas in the Early Atmosphere.
6. Greenhouse gases help to maintain the Earth's ....
7. Another name for burning.
9. Nitrogen increased as ...... undergo processes that release nitrogen.
10. This can increase levels of carbon dioxide, as there would be less photosynthesis.
11. Greenhouse gases ..... long wavelength radiation.
12. The Earth's Early Atmosphere is compared to .....
16. This is where waste/rubbish is sent.
17. Copper carbonate -> ........ + carbon dioxide
20. This process increased the amount of oxygen in the Early Atmosphere.
22. This is one of the greenhouse gases.
24. This is solution is used to test for carbon dioxide.
25. The Earth absorbs the sun's short wave radiation and ..... as longwavelength radiation.