<span>A. Sharecropping is the answer i hope this helps you </span><span />
C probably if not then sorry
Answer:
The description corresponds to an observational study.
Explanation:
In Observational studies, researchers observe the effect of a risk factor without changing what is exposed to it or its conditions. On the other hand, in an experimental study, researchers can introduce a change and study the effects of it.
Answer:
Explanation below
Explanation:
What I think is that the teacher was doing it without all seriousness. Because, if it took it serious he/she would have melted out the same position with the same duration to the students.
I think the teacher should have warned them and told them to punish them if the action is repeated.
No. They will be silent for the period of the punishment and resume to the immediately they are released.