Apr. 28, 2009
With Regard to Air Pollution and Water Pollut
What do you know about air pollution and water pollution ?
- Question:
What is the ozone hole?
Apr. 29, 2009- Answer:
Ozone hole is phenomenon of the destruction and decrease of the ozone layer resulted from erosion caused by pollutants, especially nitrogen oxides and halides, such as aerosol-generation track the spread of pollutants, erosion.
Apr. 29, 2009
- Answer:
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