单词 | man-made pollution |
释义 | man-made pollution Algae blooms and sewage, which are indirectly created by man-made pollution, are visible, and have been photographed, from space. Retrieved from Wikipedia CC BY-SA 3.0 There are also man-made pollution tree lines in weather-exposed areas, where new tree lines have developed because of the increased stress of pollution. Retrieved from Wikipedia CC BY-SA 3.0 The salt crystals further contribute to the black effect that man-made pollution has on these buildings. Retrieved from Wikipedia CC BY-SA 3.0 |
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