Multiple choice

Eutrophication is related to ___________.

  1. sewage disposal in rivers

  2. oxygen depletion

  3. oil spillage in ocean

  4. agricultural pollution of water

  5. industrial pollution of water
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

'Eutrophication' is a process in which the water body becomes enriched with nutrients. This can be a problem in marine habitats as it can cause algal blooms. The algae may use up all the oxygen in the water leaving none for other marine life. This results in the death of many aquatic organisms such as fishes, which need the oxygen in the water to live.

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