The reporting of profitability involves two things: the amount that was earned (revenues) and the expenses necessary to earn the revenues. As you will see next, the term revenues is not the same as receipts, and the term expenses involves more than just writing a check to pay a bill.
Smoking or chewing tobacco & poor oral hygiene may contribute to the formation of a black hairy tongue. Hair does not actually grow on your tongue but gives that appearance to some degree as the filiform papillae of your tongue elongate . The use of a tongue blade daily may prevent, eliminate or control this issue. Chewing tobacco can also cause cancer which is more serious! In brief: May contribute to.
The area at the back of the tongue catches food debris, and over time, the debris builds up, causing a brown or brown hairy appearance. Almost all foods can potentially cause brown, hairy tongue. Brush your tongue gently with a soft bristle toothbrush or a tongue scraper.