People who suck petrol with their mouths run the risk of increasing in their blood the concentration of
- iron
-
lead
- calcium
- magnesium
The correct answer is: B
Explanation
It's discovered that tetraethyl lead (better known as lead) provided octane to gasoline, to fix knocking or pinging in engines that could damage them and waste gasoline.
Extremely high lead levels can lead to seizures, coma, and death.
There is an explanation video available .