Point Source: pipes from a power plant, leaking underground oil tank, paper factory, pollutants that come from a single site, Nonpoint Source: fertilizer run off, litter/trash, Pollutants that come from many places or unidentified sources, fertilizers from lawns and farms,

Point Source and Nonpoint Source Pollution Review

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Визуален стил

Опции

Шаблон за превключване

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