Lead can damage the nervous system and lead to lower IQ scores.Research in the United States indicates that the concentration of lead in black children's blood is _______________ higher than in white children's blood.
A)50 percent
B)35 percent
C)20 percent
D)5 percent

Question

Quizplus · Accepted Answer

Research has shown that lead concentrations in black children's blood are on average 50 percent higher than in white children's blood. This is due to a variety of factors including exposure to lead in older housing, contaminated soil, and other environmental sources. This disparity can have long-term effects on cognitive development and overall health outcomes.

Lead Can Damage the Nervous System and Lead to Lower