| A | B |
|---|
| What is the contamination of the atmosphere by the introduction of | Air Pollution |
| What are primary pollutants? | natural and human air pollutants |
| What is an example of a secondary pollutant? | smog |
| What makes smog form? | ozone and car exhaust |
| Which of the following is an example of a point-source pollutant? | chemical wastes |
| How much human-caused air pollution in the United States comes | 10 to 20% |
| What is a very big cause of industrial air pollution? | coal-burning factories |
| What is one way to make less indoor air pollution? | don’t use solvents |
| What is acid precipitation? | rain, sleet, or snow with acids in it |
| What is an effect of acid precipitation? | Plant roots absorbs toxic metals. |
| What has acid precipitation done to some forests? | It hurt large areas. |
| What is a very quick change in acidity in a lake called? | acid shock |
| How can acid shock affect fish? | kill the fish |
| Which of the following is a result of an increase in soil acidity? | toxic metals get into the human body |
| How might acid precipitation affect children? | may harm respiratory health |
| Which of the following two countries agreed to reduce acid | the United States and Canada |
