The atmosphere

AS Environmental Science Module 1

Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.

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  6     7                
                   
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Across:

1. Non renewable energy source that contributes to global warming (6,5)
3. All living things do this. It produces carbon dioxide as a waste product (11)
4. Helps to protect life on earth from horrible things like skin cancers (5,5)
6. Layer of the atmosphere that has most of the weather (11)
8. This is happening in the Amazonian rainforest. More carbon dioxide is left in atmosphere because of this. (13)
9. Layer of atmosphere that contains the most ozone. (12)
10. Layer above the stratopause (10)
11. Needed for life on earth; produced as a waste product by green plants (6)
12. Ionisation occurs here, causes the Northern lights to appear (12)
13. Global warming is also called this due to build up of carbon dioxide (5, 5, 6)
14. Boundary layer between stratosphere and mesosphere (11)

Down:

1. We eat them and they produce methane which contributes to global warming (7, 4)
2. An inert gas that makes up most of the atmosphere (8)
5. the mixture of gases that surrounds the planet (10)
7. Biochemical process using chlorophyll and energy from the sun (14)