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Question
Which of the following statements is supported by research on lead exposure during childhood?
A)Overall, poorer intelligence test scores associated with lead exposure seem to be permanent.
B)Lead-exposed children given drugs to induce excretion of lead improve in long-term outcomes.
C)Once lead-exposed children move away from contaminated areas, their intelligence test scores increase.
D)Negative lead-related cognitive consequences are evident only at high levels of exposure.
Answer
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Related questions
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