Newsquiz: Week of March 19 March 22, 2012 -- Updated 2112 GMT (0512 HKT) (CNN Student News) -- March 23, 2012 To what extent should news organizations consider audience interest when selecting stories for broadcast? What is the name of the proposed oil pipeline that would stretch 1,700 miles from Canada to the U.S. Gulf Coast? What natural resource is the focus of U.N. conservation efforts every year on March 22? Who currently has the most delegates in the Republican presidential race? What is the world's largest rainforest? Who is the longest-serving woman in the U.S. Congress? What organization establishes rules and organizes athletic events for American colleges and universities? What U.S. territory, located in the Caribbean, held its Republican presidential primary on Sunday? What Washington, D.C. festival, which started this week and runs through late April, is marking its 100th anniversary? What African country's Rift Valley has produced a number of Olympic champions in middle- and long-distance running? What female aviator disappeared in 1937 while trying to fly around the world?