9g - Environmental chemistry

Created by Dr J E F Frost with EclipseCrossword by Green Eclipse Software —

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1. Process where the average temperature of the earth

increases (6,7). (13)

4. Visible form of energy. (5)

6. Liquid pollution from the skies that kills trees and

lakes (4,4). (8)

7. Greenhouse gas produced when fossil fuels are

burnt (6,7). (13)

10. Glass building where plants are grown. (10)

11. Process used by green plants to convert light

energy to chemical energy. (14)

14. Valuable chemical compounds found in the earth's

crust. (8)

15. Raw materials on the earth. (9)

17. Chemical or radioactive contamination of the

environment by humans. (9)

18. Type of light, just beyond the visible spectrum,

that causes cataracts and skin cancer. (11)

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2. Calcium carbonate as a sedimentary rock. (9)

3. Chemical name of "natural gas". Also produced in

large volumes by cattle. (7)

5. Very high region of the atmoshere where jet

airliners fly. (12)

7. Banned liquid refrigerant that destroys the ozone

layer. (3)

8. Form of oxygen that protects us from harmful

ultraviolet radiation. (5)

9. An unwanted reaction between metals and the

atmosphere and water. (9)

12. Where all our energy originally came from. (3)

13. Petrified (stony) remains of prehistoric plants and

animals. (6)

16. Substance like oil, coal or gas that is burnt in air to

release chemical energy. (4)

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