Q.

Pollutant from motor car exhaust that causes mental disease is –

A. Lead
B. NO2
C. SO2
D. Hg
Answer» A. Lead
Explanation: Lead poisoning is a medical condition caused by increased levels of the heavy metal lead in the body. Lead interferes with a variety of body processes and is toxic to many organs and tissues including the heart, bones, intestines, kidneys, and reproductive and nervous systems. It interferes with the development of the nervous system, and is therefore particularly toxic to children.
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