Appears radopaque on maxillary molar periapical radiographs and digital images.
This is correct. Smog is the pollutant that exhales from the car and is monitored by mechanics. If it does not pass the smog check you will not be able to drive it.
(C) The term “a smoker’s cough” refers to "Chronic Bronchitis", <span>which is caused by a long-term inflammation of the bronchi.
Hope this helps!</span>