Considering Their Relative Density and Solubility in Water, How Would

question 30

Multiple Choice

Considering their relative density and solubility in water, how would hazardous substances behave that accidentally entered a groundwater system?

• A) Sulphuric and nitric acids would sink to the bottom of the aquifer; kerosene would accumulate as a layer just below the water table.
• B) Gasoline and kerosene would float on the water table; ethyl alcohol would dissolve and disperse in the groundwater.
• C) E- coli bacteria may build up in groundwater but can be diluted or rinsed away with sufficient input of natural surface waters such as farm runoff.
• D) Gasoline and kerosene would float on the water table, but most pesticides break down chemically when they reach the water table.

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