Which is an example of environmental problems that the united states and canada have worked together to solve?

Click on this article and use it to answer the questions below. article on china and controlling the media 1. according to the article, the chinese government has tried to control its people in all of the following ways except: question 1 options: create and spread propaganda in the mediacensorship of the mediaallowing people to create their own social mediadeleting people's social media posts without their permission

If you are fighting an infection, your might become enlarged and painful. a. lymphocytes c. lymph nodes b. lymph d. capillaries

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.