D brushing teeth removes plaque and food particles
In a study, the independent variable is the thing that you change to see how the change produces different results. In this study, the independent variable would be the use of nicotine.
Here are ways to prevent yourself from getting sick:
1) Washing your hands.
2) Going to bed.
3) Avoid making contact with someone that's sick.
Those are a few ways you can prevent yourself from getting sick!
-LizzyIsTheQueen
The do’s and don’ts of body language or speech. This includes greetings, texts and abbreviations, patient/caretaker relationships. Sorry if this isn’t what your asking for.