2. Cycles Review

3. # 1 Study the diagrams of Water Cycle, Carbon Cycle, and Nitrogen Cycle located on the last page of the final exam review packet

4. A:B: Elemental carbon in the ground Carbon atoms in plant sugar #2 Burning wood from a live oak would most directly increase which form of carbon in the carbon cycle? C:D: Carbon dioxide in the atmosphere Carbon compounds in animals

5. C. Carbon dioxide in the atmosphere

6. A:B: water plant growthflooding #3 Nitrogen waste washing into a pond would most likely cause an increase in ____________. C:D: evaporationfish reproduction

7. A. Water plant growth

8. A:B: alwayssometimes #4 In the water cycle new water is _______ created. C:D: neverrarely

9. C. never

10. A:B: The trees take up water through the roots There would be less oxygen in the atmosphere #5 How does the removal of trees and other vegetation affect the carbon cycle? C:D: The soil would erode away The cycle would not be affected by this type of change

11. B. There would be less oxygen in the atmosphere

12. A:B: Water conservation Clean up polluted rivers and lakes #6 Which of the following statements would BEST describe a way people can help our groundwater to be abundant and safe to use? C:D: Neither A or BBothe A and B

13. D. Both A and B

14. A:B: Allowing more sunlight into the atmosphere Reducing the amount of oxygen in the air #7 How would an increase in carbon dioxide cause global warming? C:D: Trapping more heat in the atmosphere Reflecting sunlight from Earth’s surface

15. C. Trapping more heat in the atmosphere

16. A:B: Desertification would not be able to happen The land would become more fertile #8 If someone kills off the bacteria in the soil, what could happen? C:D: There would be no affect on the nitrogen cycle The land would become less fertile

17. B. The land would become more fertile

18. #9 Don’t forget to study the diagrams of Water Cycle, Carbon Cycle, and Nitrogen Cycle located on the last page of the final exam review packet.

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