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Question
Coal ash contains which of the following substances?
Coal ash contains which of the following substances?
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Solution
The correct option is D All of these
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Coal ash, a catchall term for several kinds of waste left over at power plants that burn coal, typically contains a number of substances harmful to human health—arsenic, chromium,cadmium, lead, and mercury among them.
<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Coal ash, a catchall term for several kinds of waste left over at power plants that burn coal, typically contains a number of substances harmful to human health—arsenic, chromium,cadmium, lead, and mercury among them.
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