Pollution Effects · Botany

Which pollutant effect is most closely associated with biomagnification?

  1. Increase in concentration of persistent toxins at higher trophic levels
  2. Decrease in pollutant concentration up the food chain
  3. Instant breakdown of all pollutants in water
  4. Complete and immediate conversion of all pollutants into totally harmless oxygen gas
Show answer and explanation

Correct answer: Increase in concentration of persistent toxins at higher trophic levels

Biomagnification is the increase in concentration of persistent pollutants as they move up food chains. Pollutants such as mercury and some pesticides can accumulate strongly in top consumers.

Difficulty: Medium Question 6 of 20

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