Key Stage 3
Meaning
Eutrophication is a process which kills animals in lakes and rivers due to pollution.
About Eutrophication
- Fertilisers are washed from the soil into rivers and lakes by the rain.
- The fertilisers cause algae to grow uncontrollably.
- The algae cover entire surface of the water blocking out all sunlight to the plants below.
- Most of the algae and the plants die due to lack of sunlight.
- The water no longer holds as much dissolved Oxygen so the animals die.
References
AQA
- Eutrophication, page 221, GCSE Chemistry; Student Book, Collins, AQA
- Eutrophication, page 289, GCSE Biology; Third Edition, Oxford University Press, AQA
- Eutrophication, page 352-3, GCSE Biology; Student Book, Collins, AQA
Edexcel
- Eutrophication, page 135, GCSE Combined Science, Pearson Edexcel
- Eutrophication, page 293, GCSE Biology, CGP, Edexcel
- Eutrophication, page 69, GCSE Combined Science; The Revision Guide, CGP, Edexcel
- Eutrophication, page 99, GCSE Biology; The Revision Guide, CGP, Edexcel
- Eutrophication, pages 187, 191, GCSE Biology, Pearson, Edexcel