Smoking makes lungs dirty, coating them with tar and soot, which interferes with their normal functioning. Prolonged smoking can cause several kinds of lung disease including emphysema and lung cancer, which seriously interfere with normal lung function.
It would not affect you.
Smoking suppresses the action of the mechanisms that normally rid the lungs of mucous, and a lot of garbage builds up in there. Getting rid of it after quitting is normal and no cause for alarm. It's just your lungs doing the job of cleaning they were not allowed to do previously due to the effects of smoking.
Yes, a veterinarian's ability to perform their job competently often does affect their income. This is particularly true when veterinarians are paid on a commission basis.
It can affect all of those things.
This is not possible and she is lying to you. Water in the lungs can lead to the person choking and will finally die if not treated.
I don't see why not. Their religion forbids the consumption of alcohol - which shouldn't affect their ability to do a job such as a delivery driver.
It looks bad. Makes you unclean, selfish. While others are doing work your producing nothing except for cancer.
Depends on the job and who you ask, doesn't it? Note that WikiAnswers cannot answer questions off a job interview for you. Only you, or whoever is filling out the application, can.
Not at all, piercing can not affect any kind of ability to perform your intellectual activities. This is just a myth as it is not scientifically proven.
Job fit ability is the skill level or ability of someone to complete a task or job. Many people do not have the ability they need to fit their job's description.
In the US, you can be fired for just about anything as long as it doesn't constitute discrimination, so yes, you could be fired for smoking on the job (or for complaining about smoking on the job; your question wasn't entirely clear).
Our lungs help us breath and they let us live.