Which of the following is a possible consequence associated with prolonged exposure to lead?

a.

increased occurrence of delinquent behavior

b.

increased occurrence of ADHD

c.

increased occurrence of depression

d.

increased occurrence of obesity

The answer is : Increased occurrence of ADHD. ADHD stands for Attention Deficit Hyperactive Disorder. It is a neuro-developmental mental disorder that involves problems paying attention, excessive activity, or difficulty controlling behavior. People exposed to certain toxic substances, such as lead or polychlorinated biphenyls, may develop problems like ADHD.