[单项选择]Passage Four
Electric cars are dirty. In fact, not only are they dirty, they might even be more dirty than their gasoline-powered cousins.
People in California love to talk about "zero-emissions vehicles", but people in California seem to be clueless about where electricity comes from. Power plants most all use fire to make it. Aside from the few folks who have their roofs covered with solar cells, we get our electricity from generators. Generators are fueled by something-usually coal, oil, but also by heat generated in nuclear power plants. There are a few wind farms and geothermal plants as well, but by far we get electricity mainly by burning something.
In other words, those "zero-emissions" cars are likely coal-burning cars. It’s just the coal is burned somewhere else so it looks clean. It is not. It’s as if the California Greens are covering their eyes-"If I can’t see it, it’s not happening." Gasoline is an incredibly efficient way to power a
A. being green is good and should be encouraged in communications
B. electric cars are not clean in that we get electricity mainly by burning something
C. zero-emissions vehicles should be chosen to protect our environment
D. electric cars are now the dominant vehicle compared with gasoline-powered