Senators serve 6 years terms and elections over Senate are staggered over even years. So only one third of senate is up for reelection.
Answer:
Non-participant observation
Explanation:
Patti does an observation type study. These types of studies can be divided into two groups: participant and non-participant observation.
As Patti wants to be unnoticed by the children, she is using the non-participant approach to studying. Here, the researcher does not form a part of a group and/or even becomes a member of it but deliberately stays apart from it. His main goal is to observe the behavior of such a group in a natural setting and without interfering himself.
I believe that U.S.A. is dependent on oil because oil helps cars, airplanes, helicopters all running.
The mass expulsion or killing of members of an unwanted etnic or religious group in a society