Within the zone o theh s of saturation, groundwater nows from the vegion of thig

Question

Within the zone o theh s of saturation, groundwater nows from the vegion of thighest, lowest mowe of saturation, groundwater flows from the region of thighest, lowesth region of thighest, lowest) pre 18 pressure and water-filled "holes" common in regions having limestone bedrock are know 19. Saltwater incursion occurs becsuse s remains (above below) water and the cone of depression (falls/rises) altwater is (less/more) fresh water unless discharge pumping exceeds the recharge of fress dense than fresh water, and th to the level of water wells 20, crupting from geysers which contains dissolved calcium carbonate will form deposits of 21 The percentage of open space within the rock or sediment is known as its and its capacity to transmit fluid is known as 22 A(n) 23 24. Hard water is a problem in areas underlain by 25. is a permeable layer which transports water activity may be due to the heating of water by or Earth's gcothermal gradient the area above the water table in which water is held in tension in pores is known as the zone of The cone of depression results when Groundwater flows under the intluence of to the well from the well is greater than 26 27. 28 and are icicle-like structures hanging from cave ceilings that form as a result of precipitation of the mineral CRITICAL THINKING 29. Briefly explain the role of streams in the formation of caverns, and the process by which several levels of 30 Explain why stalactites and stalagmites typically form in pairs and often merge to form a column. 31 Why was the Yucca Mountain area selected for the national high-level radioactive waste repository? vertically connected caves may form What are three reasons that some geologists are concerned about the Yucca Mountain site as a radioactive waste repository 33. Why is the High Plains Aquifer being depleted? 34. Under what conditions does subsidence occur and why is this such a problem?

Explanation / Answer

17. Within the zone of saturation the flow of ground water is from the region of highest pressure to the lowest pressure.

18. sinkholes. it is  a depression or hole in the ground caused by some form of collapse of the surface layer.

19. saltwater is more ( as it contains minerals)  dense than fresh water. it remains below the fresh water. and the cone of depression rises to the level of water wells.

20. travertine, calcareous tufa.

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