Pollutant from motor car exhaust the causes mental disease is:

Options

A. `NO_(2)`
B. `SO_2`
C. Pb
D. Hg

Answer

C

Explanation

Lead (Pb) is released by combustion of petrol as tetra ethyl lead is used as antiknock in petrol. This lead is very harmful and causes plumbism or lead poisoning, which disturbs nervous system, liver, kidney in adults and also causes brain damage in children.