Answer:
D
Explanation:
Davis rejected the insistence of Northern politicians that the compact made through the Constitution protected slavery.
The movement of materials away from place is called erosion.
Answer:Spread is going to a new location without any cause.Migration is going to a new location to escape violence,find a better job and many more.
Answer: Confidentiality of the individual subject's responses.
The most important issue that the researcher addressed while planning this research was to keep the confidentiality of the individuals who participated in the survey. By simply answering the questions anonymously and dropping them in the survey box, participants were able to express their thoughts more freely.
