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Science 5
Air Quality Vocabulary
| Term | Definition |
|---|---|
| Pollutants | Harmful substances in the air, water, or soil. |
| Pollution | The contamination of Earth’s land, water, or air. |
| Photochemical Smog | A brownish haze that is a mixture of ozone and other chemicals, formed when nitrogen oxides, hydrocarbons, and other pollutants react with each other in the presence of sunlight. |
| Acid Rain | Rain that contains more acid than normal. |
| Point Source Pollution | Pollution that can be traced to a known source such as industrial plants, gas stations, disposal facilities, etc. |
| Renewable Resources | A resource that is either always available or is naturally replaced in a relatively short time. |
| Nonrenewable Resources | A natural resource that is not replaced in a useful time frame. |
| Ozone Layer | The layer of the atmosphere that contains a higher concentration of ozone than the rest of the atmosphere. |
| Ultraviolet Radiation | Electromagnetic waves with wavelengths that are shorter than visible light but longer than x-rays. |
| Nonpoint Source Pollution | Pollution that comes from an unknown source. |