<span>The main advantage of natural and observational studies is that you see the experiments in their "natural" state - you are able to test hypotheses in the field and with large study areas There is no involvement of the person conducting the experiment which leads to the results unaltered. Any experiment that has outside influence of any kind can have skewed results because the person interfering whether directly or indirectly could cause the results to be biased in favor of the person or thing that interfering in a manipulative setting.</span>
Powhatan asserted control over five Native American tribes.
I believe the answer is: D.<span>. openly known and easily stated by most citizens
According to Edward, these rules usually would be introduced by each members of the social group right before they become the member of that social group. Examples of such rules are the employee orientation that companies do for new recruits.</span>
Answer:
I think season change is the changing of the seasons when it time comes
Because it has different ways of them or torward the way they live
