Process:  -You inhale -The air enters the mouth and nose -The diaphragm contracts -Air fills all the sacks in the lungs -Oxygen passes through the sacks into capillaries -The blood is passed to the blood in the capillaries -The blood carries the oxygen to the heart -The heart pumps the oxygenated blood to the body.
 Question: What is the effect of demand for coal has slowed down on a smaller amount of oxygen being delivered to the blood stream.?
none