Q. Consider the following statements:
1.In bioaccumulation there is an increase in concentration of a pollutant from the environment to the first organism in a food chain.
2.In biomagnification there is an increase in concentration of a pollutant from one link in a food chain to another.
Which of the statements given above is/are correct?
Answer: C
Notes:
Explanation: Movement of these pollutants involves two main processes:
- Bioaccumulation
- Biomagnification
Bioaccumulation:
- It refers to how pollutants enter a food chain.
- In bioaccumulation there is an increase in concentration of a pollutant from the environment to the first organism in a food chain.
Biomagnification:
- Biomagnification refers to the tendency of pollutants to concentrate as they move from one trophic level to the next.
- Thus, in biomagnification there is an increase in concentration of a pollutant from one link in a food chain to another.
Source: SHANKAR IAS Environment

