Q. With reference to Bioaccumulation and Biomagnification, consider the following statements:
1.Bioaccumulation refers to the increase in concentration of a pollutant from the environment to the first organism in a food chain.
2.Biomagnification refers to the increase in concentration of a pollutant as it moves up successive trophic levels in a food chain.
Which of the statements given above is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: C
Notes:

Explanation:

  • Bioaccumulation is the process by which pollutants from the environment accumulate in the first organism of a food chain.
  • Biomagnification is the process where the concentration of pollutants increases at each successive trophic level in a food chain (e.g., DDT in birds of prey).

Source: Environment (NCERT)

Blog
Academy
Community