All of the following are examples of anthropogenic pollutants EXCEPT

When the housing bubble began to burst in 2006, investors became

A) more likely to purchase mortgage-backed securities since mortgage values had declined significantly, making the securities a better value. B) less likely to purchase mortgage-backed securities since the default rate on mortgages began to rise. C) more likely to purchase mortgage-backed securities since the higher rate of return made these investments much more profitable. D) less likely to purchase mortgage-backed securities since the government virtually took over the mortgage market.

The theory that explains the shift in the production of color TV sets from the United States to Japan and Taiwan is called the _____ theory

a. productivity difference b. factor abundance c. product life cycle d. preference e. human skills