Describe how tar accumulates in the respiratory system and how it affects the lungs.

It covers the cilia which causes your lungs to stop working the way it is and then die like how the healthy lungs tissues r first all good but then when tar from cigarette smoke comes in it makes it a smokey lung and when you breathe it in with your damaged lungs, it will kill you eventually  

Explanation:

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princess bubblegum believes that the best cookies are always homemade.

d is the answer hope this