At the 2016 Democratic National Convention, ________ emerged as a powerful and heavily criticized force in the nominating process because of the closeness of the race between Bernie Sanders and Hillary Clinton.

Should pollsters be worried about the population of “nonrespondents”?

a. yes, because nonrespondents are less educated than respondants b. yes, because including nonrespondents will create sample bias c. no, because nonrespondents are only a small percentage of the populace d. not yet because “nonrespondants” differ little from those who engage in polls

The challenges posed by environmental change are political,

A) technological, and global. B) expertise, and monetary. C) proficiency, and fiscal. D) but exclusive to developed countries. E) but exclusive to developing countries.