I believe that would be C.
A noise that produces an echo when it bounces off a distant wall.
Answer: The stock market lost 14 billion dollars that day
Answer:
The Hawthorne Effect
Explanation:
The Hawthorne effect (also referred to as the observer effect) explains that individuals modify an aspect of their behavior in response to their knowledge of being observed. In this study students changed their eating place during the observation period.
There would be more slave states than free states.
Answer:
Jon know what the question room
Explanation:
