Toxic chemicals - Sprayed onto crops to prevent insect damage and weed growth. When runoff occurs, these chemicals enter watercourses, Untreated sewage - Lack of treatment plants in inhabited areas meaning sewage enters watercourses, Fertilisers - Runoff occurs from agricultural land causing fertilisers to enter watercourses,

Sources of water pollution

per en/la

Tauler de classificació

Estil visual

Opcions

Canvia de fonament

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