1. | 1. Where is most of the Earth's freshwater located? |
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2. | 2. How is Earth's water supply being continuously renewed? |
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3. | 3. Precipitation may ________ into groundwater. |
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4. | 4. Is it possible for groundwater to leave an aquifer? |
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5. | 5. Why can the depth of a water table be high in some places and low in others? |
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6. | 6. Why is it possible for the rate of movement to vary? |
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7. | 7. Can groundwater be accessed by drilling wells? |
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8. | 8. Who is 44% of all freshwater used by? |
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9. | 9. What kind of water is needed for agricultural use? |
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10. | 10. What is irrigation? |
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11. | 11. What is one problem with overdraft? |
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12. | 12. What is desalination? |
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13. | 13. What is freezing? |
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14. | 14. What does unpotable mean? |
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15. | 15. What does screening do? |
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16. | 16. Is chlorine a chemical that can be used in sterilization? |
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17. | 17. How are water resources renewed? |
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18. | 18. What is one type of use for water resources? |
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19. | 19. What happens when run-off gets caught in low places? |
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20. | Freshwater is more plentiful than groundwater. |
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