Multiple choice

Which of the following are the impacts of nutrient pollution?

  1. Undergrowth of algae
  2. Shifts in composition of species
  3. Excess of organic carbon

  1. Both 1 and 2

  2. Both 2 and 3

  3. Both 1 and 3

  4. All three
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nutrient pollution, a form of water pollution, refers to contamination by excessive inputs of nutrients. It has the following effects:

Population effects: excess growth of algae (blooms); Community effects: species composition shifts (dominant taxa); Ecological effects: foodweb changes, light limitation; Biogeochemical effects: excess organic carbon (eutrophication); dissolved oxygen deficits (hypoxia); toxin production; Human health effects: excess nitrate in drinking water

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