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.
AA
alcoholics anonymous. you can find them in most towns
Calories are energies that fuel our bodies. They are found in every single food. For example chips, soda, salad
The average flu is about two weeks but the most severe symptoms are in the first 5 days but can subside within 3 days.
