According to the textbook application, California's urban smog problem
A) diminished because of the responsiveness of U.S. automobile manufacturers
B) was never addressed by state legislation
C) was linked through scientific study to auto emissions in the 1950s
D) all of the above

Question

Quizplus · Accepted Answer

California's urban smog problem was linked through scientific study to auto emissions in the 1950s. While there have been efforts to address the issue through state legislation and the responsiveness of U.S. automobile manufacturers, the problem has not completely disappeared.

According to the Textbook Application, California's Urban Smog Problem