People who suck petrol with their mouths run the risk of ...
People who suck petrol with their mouths run the risk of increasing in their blood the concentration of
iron
lead
calcium
magnesium
Correct answer is B
It has been discovered that tetraethyl lead (better known as lead) provides 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.
Which of the following distinguishes a butterfly from a moth? ...
In the kidney, both useful substances and waste are removed from the blood by ...
Which organism is a primary producer? ...
How many food chains are in the diagram? ...
Which organ removes the largest quantity of water from the blood? ...
The small masses of nervous tissues in which many neurones have their nuclei are called ...
A monocot root is different from a dicot root by having ...
Which of these is an example of physiological variation? ...
The structure of the ear that is responsible for balancing is the ...
The part of the mammalian digestive system where nutrient absorption takes place is the ...