723801
Description
| Question | Answer |
| Pollutant | Substance that has a harmful effect on the environment and is present at concentrations greater than its natural levels as a result of human activity. |
| Primary Pollutant | A pollution that is directly released into the atmosphere (or other parts of the environment.) Example: CO, SO2, NO |
| Secondary Pollutant | A primary pollutant that undergoes a chemical change in the atmosphere. Example: HNO3, H2SO4, NO2, SO3 |
| Natural Sources of Pollutants | Sources that include normal activities in an ecosystem. Example: Decomposition, Volcanic Activity, |
| Anthropogenic Sources | Sources of pollutants that are the result of human activities. Example: Combustion of Fossil Fuels |
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