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Questions and Answers
What is bioaccumulation?
What is bioaccumulation?
- A sudden change in the concentration of a chemical in a biological organism
- An increase in the concentration of a chemical in a biological organism over time (correct)
- A decrease in the concentration of a chemical in a biological organism over time
- A steady concentration of a chemical in a biological organism
How can heavy metals enter a water supply?
How can heavy metals enter a water supply?
- By industrial and consumer waste only
- By acidic rain breaking down soils and releasing heavy metals into streams, lakes, rivers, and groundwater only
- By industrial and consumer waste, or even from acidic rain breaking down soils and releasing heavy metals into streams, lakes, rivers, and groundwater (correct)
- By natural processes only
Why are heavy metals dangerous?
Why are heavy metals dangerous?
- Because they tend to be excreted easily
- Because they tend to bioaccumulate (correct)
- Because they tend to break down quickly
- Because they tend to be metabolized easily
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