Thirteen percent of people in a study said they would never try recycled water.
The correct answer is The source of the noise is not yet revealed, as no one is standing at the door.
We know that the narrator heard someone knocking on his door, however, when he came to open it, there was no one there. So we feel suspenseful as we want to know who was it there in front of his door. We will find out soon enough that there was actually a raven knocking on his window.
Continuing on from the comments. Around you, with a large city you have more people. And finally A call to action should be something along the lines of "If you are thinking of moving, move to a large city!" Hope it helped
Answer:
The exam score is the dependent variable.
The prep strategy is the independent variable.
All students study the same chapter.
That would be the review strategy.