| 11. | Unlike runoff water and subsurface water penetration that comes from outside the house, condensation is an interior problem.
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| 12. | They would dig for subsurface water and other materials they could convert into fuel for the trip home.
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| 13. | Too much subsurface water can be counterproductive to agriculture by preventing root development, and inhibiting the growth of crops.
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| 14. | Some subsurface water associated with geothermal sources contain high concentrations of toxic elements such as boron, lead, and arsenic.
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| 15. | When natural water sources are unavailable, the Asiatic wild ass digs holes in dry riverbeds to access subsurface water.
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| 16. | _A snakelike tube that will drill thousands of feet into the Martian crust, seeking subsurface water and, perhaps, microbes.
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| 17. | It will also look for subsurface water, which may aid in understanding whether life could once have existed there.
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| 18. | The elapsed time since a subsurface water mass was last in contact with the atmosphere is the tracer-derived age.
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| 19. | The European Space Agency will loft its complementary Mars Express mission, also slated for June, to search for subsurface water.
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| 20. | In 2000, of nitrogen came from groundwater and subsurface water, came from row crops, and came from hay and pastures.
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