The process of 'eutrophication' is due to:

Increase in concentration of radioactive substances in water

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The reduction in the concentration of the dissolved oxygen in the water due to phosphate pollution in water

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Increase in concentration of fluoride ion in water

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Increase in concentration of insecticide in water

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Solution

The correct option is B The reduction in the concentration of the dissolved oxygen in the water due to phosphate pollution in water
The process of 'eutrophication' is due to the reduction in concentration of the dissolve oxygen in water due to phosphate pollution in water.
Fertilisers are washed off the land by rainwater into rivers and lakes.
The resulting increase of nitrate or phosphate in the water encourages algae growth.

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Similar questions

Eutrophication is low concentration of dissolved oxygen in water due to

[3 C a_{3} (P O_{4})_{2} . C a (O H)_{2}]

1000 p p b, 40 p p b, 100 p p m

0.2 p p m

The amount of oxygen dissolved in water increases due to increased water pollution.

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