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  3. [audioFiles]2016m12s/audio_ezfj_201610_026[/audioFiles] Water Pollution

[audioFiles]2016m12s/audio_ezfj_201610_026[/audioFiles] Water Pollution

游客2024-09-17  33
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答案     Water Pollution
    Water pollution is an undersirable change in the state of water, /polluted with harmful substances. /It is the second most important environmental issue next to air pollution. /Any change in the physical, chemical or biological properties of water/will have a harmful effect on living things. /Water pollution affects all the major water bodies of the world/such as lakes, rivers, oceans and groundwater. /Polluted water is unfit for drinking and for other consumption processes. /It is also not suitable for agricultural and industrial use.
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