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Lesson 48
Human Population and Its Impact
| Question | Answer |
|---|---|
| Troposphere | lower layers of the earth’s atmosphere |
| Stratosphere | upper layers of the earth’s atmosphere, contains the ozone layer |
| Trace Gases | the gases in the earth’s atmosphere other than nitrogen and oxygen, they make up only one percent of the atmosphere |
| Greenhouse Gases | allow light to pass through them readily, but they trap heat close to the ground thus increasing the temperatures in the troposphere |
| Acid Rain | damaging rain that results from sulfur oxides from burning fossil fuels combining with water vapor to form sulfuric acid in the rain clouds |
| pH Scale | scale of relative acidity with 0 being the most acidic and 14 being most basic |
| Thermal Inversion | when rising warm air traps denser cool air beneath it, it creates air pollution problems in urban areas where natural barriers prevent the denser polluted air from escaping |
| Ozone Shield | layer of ozone in the stratosphere that protects the earth from harmful solar radiation |
| Eutropication | excessive plant growth |
| Biological Magnification | process in which the concentration of certain elements increases at each level of the food chain |
Created by:
ecotteacher
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