(environmental service systems) where does much of the harm from lead, a heavy metal come from?

bullets
gas
paint
tools

The correct answer would be lead paint. Even though there has been a decline in the amount of lead based paint that is used nowadays, still the largest source of lead poisoning in children in America comes from dust and chips from deteriorating lead paint on the inside walls of their homes and schools.

whats up fam! \(-u-)/