There is no "should" or "should not". The depends on the question that you are trying to answer.
It should be 610%
50% whole-grain
15 percent is 15/100, which should be reduced down to 3/20
you should watch that the graph equals 100 percent
100%
75%
The lungs can't have water in them. Just to keep them moist. But if they did have, i dont know, 86 percent water, just for say, you would like so called "drown" on land I guess.
2/100 percent to the carbon dioxide
It means that you have lost 76 percent of your normal lung capacity. Your lungs do not hold as much air anymore.
because it gives 20 percent of air to humanbeing to live
Cigarettes should be banned because they can damage your lungs.
The LUNGS. Pneumonia is an infection of the lung, and can be caused by nearly any class of organism known to cause human infections. These include bacteria, viruses, fungi, and parasites.
the epiglotus
There is no "should" or "should not". The depends on the question that you are trying to answer.
Birds, reptiles and most amphibians breathe through lungs.
It means that 23% of the lungs are not functioning, normally from smoking. Because someone is 74 years old does not mean that they should suffer from reduced lung function.