Chapter 18

Sixteen of the world's twenty most polluted cities are found in

China

Primary pollutants from burning coal include all of the following, except

ozone

Radioactive ____ is a product of uranium decay

radon

Which of the following is not one of the results of the UV filtering effect of the ozone layer?

reduces the amount of water vapor in the atmosphere

According to environmental scientists, all of the following would strengthen U.S. air pollution control laws, except

relax controls on petroleum refineries

Large diesel trucks emit as much particulate matter as 150 cars

true

The biggest pollution threat to poor people is indoor air pollution caused by burning of wood, charcoal, coal, or dung in open fires in their houses

true

The chance of getting lung cancer from radon gas is much higher if you are a smoker or a former smoker.

true

The ozone layer surrounding the earth is formed when molecules of oxygen in that layer are converted to ozone by UV radiation

true

Air pollution in the urban areas of many less-developed countries is

worse