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.
The answer is D, embraces challenges.
Answer:
Rashelle needs more than the usual number of drinks to feel high. Thickened, white patches inside the mouth.
I would imagine a reasonable goal to start with would be skate up and down your driveway.
