What do the distributional, informational and party hypotheses say about the goals and behaviors of congressional committees? what considerations guide the committee requests of members? what criteria, both formal and informal, do the committees-on-committees follow in responding to members’ requests? according to lecture, what are the major sources of committee power in the congress? what is the difference between positive and negative deference? what are the limits on committee power?

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.

Plz i really need hepwhy is it important for students who have their own rights to question and change established ways of doing things

All of the following are examples of sedimentary rocks except? a) sandstone made of small pieces of sand cemented together b) coquina made of small shells cemented together c) shale made of small silt particles cemented together d) quartzite, or sandstone that has been subject to high pressure and heat over time