Which of the Following Geologic Materials Would Have the Highest

question 54

Multiple Choice

Which of the following geologic materials would have the highest groundwater velocities and be least effective in removing unwanted pollutants from the water?

• A)unconsolidated medium- grained sand; sand grains are coated with clay minerals
• B)limestone; numerous solution channels and fractures widened by dissolution
• C)lakebeds; unconsolidated very fine- grained sand and silt
• D)sandstone; well- cemented with a few, widely spaced vertical fractures

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