The fall of the Berlin Wall.
Interviews are in person, therefore there may be interviewer and interviewee bias in regard to the questions being asked. Only so many interviews can take place during any given period of time. Surveys eliminate interviewer and interviewee biases. And surveys can reach a large majority of people. However, surveys are only good if they are actually returned.
Hope this helps! :)
Answer:
i don't know to be honest
In my own opinion, regarding my readings in some credible source, the reason why the best-known preacher of the second great awakening <span>Charles Grandison Finney supported the temperance and abolitionist movement is that it is God's will to save the people and this movement thought that the salvation is possible on the good works.</span>