O-LevelChemistryChemistry of the Environment5070/11 · Oct/Nov 2018 · Q331 Mark

Lakes contain a variety of dissolved substances. Which substance is responsible for eutrophication in lakes?

Ametal compounds

Bnitrate fertilisers

Coxygen

Dsulfuric acid

✓ Correct answer

B: nitrate fertilisers

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Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2018 Paper 1 Variant 1, question 33.

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