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en
CR
12
Animo : Nitrates & nitrites are converted into _____ acids
Potable water : Drinking water is also called ________
Glucose : When _______ is used we get energy
Endoskeleton : The _________ of various animals are also formed carbonate salts
Terestrials : _____ life- forms require fresh water
Pollution : The contamination of the enviornment
Carbonates : The dissolved substance sea creatures use to make their shells
Air : ________ is what surrounds us
Smog : ______ is a combination of smoke and fog
Photosynthesis : Plants make oxygen through the process called _______
Atmosphere : What covers the earth like a blanket
Freons : The other name for CFC is ______
Across:4. | _____ life- forms require fresh water | 6. | ________ is what surrounds us | 8. | Plants make oxygen through the process called _______ | 10. | The other name for CFC is ______ | 11. | What covers the earth like a blanket |
| | Down:1. | The _________ of various animals are also formed carbonate salts | 2. | When _______ is used we get energy | 3. | The dissolved substance sea creatures use to make their shells | 5. | Nitrates & nitrites are converted into _____ acids | 7. | Drinking water is also called ________ | 8. | The contamination of the enviornment | 9. | ______ is a combination of smoke and fog |
| |
© 2013
PuzzleFast.com, Noncommercial Use Only
Across:4. | _____ life- forms require fresh water | 6. | ________ is what surrounds us | 8. | Plants make oxygen through the process called _______ | 10. | The other name for CFC is ______ | 11. | What covers the earth like a blanket |
| | Down:1. | The _________ of various animals are also formed carbonate salts | 2. | When _______ is used we get energy | 3. | The dissolved substance sea creatures use to make their shells | 5. | Nitrates & nitrites are converted into _____ acids | 7. | Drinking water is also called ________ | 8. | The contamination of the enviornment | 9. | ______ is a combination of smoke and fog |
| |
© 2013
PuzzleFast.com, Noncommercial Use Only