Air pollution is particularly dangerous in which country, despite the nation's attempts at cleaning up smog before the 2008 Olympics in Beijing?

What scale of measurement has the properties of identity and magnitude?

A) interval B) nominal C) ratio D) ordinal

How do command-and-control policies differ from incentive systems?

a. Command-and-control policies use marketlike strategies, whereas incentive systems do not. b. Command-and-control policies are typically more efficient than incentive systems. c. Command-and-control policies are typically more equitable than incentive systems. d. Command-and-control policies typically focus on punishing those who violate the law, whereas incentive systems often include rewards.