Question

8. When domestic sewage / fertilisers is released into rivers, the growth of algae and bacteria is a) promoted b)not affected c) inhabited d)None of the above​

Answer 1

Answer:

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Eutrophication is characterised by a significant increase of algae (microscopic organisms similar to plants) due to the greater availability of one or more growth factors necessary for photosynthesis, such as sunlight, carbon dioxide and nutrients (nitrogen and phosphorus).

Answer 2

Answer:

It is :

(d) none of the above

as the environment is very acidic and PH rate is 3 or4 so life cannot be supported there at the moment.

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