Mercury

question 35

Multiple Choice

Mercury

• A) Is most toxic to humans in the form of methyl mercury.
• B) Is bio-concentrated (concentrations increase up the food chain), with the result that large fish like tuna may contain unacceptable levels.
• C) May be added to the atmosphere through the burning of coal, incineration of waste, smelting association with ore processing and processing of batteries.
• D) Is transferred from the atmosphere into water, where microorganisms transform it to methyl mercury.
• E) All of the choices are correct.

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