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Air
Question | Answer |
---|---|
Law of conservation of matter | Matter is neither created nor destroyed. |
Convection | The transfer of heat in fluid through a current made up of warm, rising fluid and cool, sinking fluid. |
Primary pollutants | Pollutant formed directly from natural activities and human activities |
Secondary pollutant | Pollutant formed from primary pollutants |
Ozone | A molecule made from three oxygen atoms |
Smog | An air pollutant formed from nitrogen oxides and VOC's and activated by sunlight energy |
Photochemical | A chemical reaction that requires sunlight energy. |
Volatile Organic Compound | A pollutant that reacts with nitrogen oxides to make smog. |
Theory | A big idea in science, often developed over time, using evidence gained through observations and experimental data. |
Climate | The normal weather conditions of region, throughout the year, averaged over a series of years. |