Answer:
Possibly because if something stained the wall, then it would not come off, would be hard to get off, or will not come off for a long time.
Answer:
oral fluency, speed, stress, and pauses.
Explanation:
Hospitals take strict precautions to assure that nothing adulterates the blood supply.
** adulterate : render something poorer in quality by adding another substance, typically an inferior one.
