What is the most prevalent cause of lung disease?

The most prevalent cause of lung disease is most likely smoking. Since smoking inhales smoke to your lungs, it will eventually turn black as you increase the amount you smoke. Also, since smoking is totally preventable, that is why it is prevalent cause.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.