The metaphor known as the "tragedy of the commons" is widely used to explain the impact of human behavior on ecological systems. It is derived from events that occurred in __________

Time of the year was an example of an extraneous variable in the author's research on social networking sites

Indicate whether the statement is true or false

Ideologically, Republicans tend to be more conservative, favoring a limited role for government; Democrats tend to be more liberal, preferring a more activist government

a. True b. False Indicate whether the statement is true or false