35. Circle the aquifer interaction that could cause groundwater contamination to

Question

35. Circle the aquifer interaction that could cause groundwater contamination to seep into surface water from either side of the stream 52 ITYDRA 36. A subsurface condition with a water saturated formation of porosity greater than 0.5 (more than 50%) suggests which of the following conditions relevant to water flow a. Normal Darcy-like groundwater flow conditions b. Water flow unlike Darcy groundwater flow, more analogous to channel or pipe flow c. Small animals reside in the tubular spaces d. Plastic clay conditions e. None of the above 37. Advective transport is a major component of which of the following in a typical two dimensional model of a groundwater contaminant plume? a. Length b. Thickness c. Source strength d. Width e. None of the above 38. Which property of the porous soil matrix is the physical cause of dispersive mixing as groundwater and contaminants flow through an aquifer? a. Hydraulic conductivity b. Tortuosity C. Reticulated pythonemon d. Manning's n for groundwater e. Hydraulic gradient 39. Which of the following stages of lake development indicates clear lake water with minimal nutrients and biological activity a. Hypereutrophic b. Eutrophic c. Oligotrophic d. Mesotrophic e. Swamp/bog wetland

Explanation / Answer

35) f)

36) a. Normal Darcy-like groundwater flow conditions

37) c. Source strength

38) a. Hydraulic conductivity.

39) b. Eutrophic

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