Question

Study the given diagram and answer the following question.Which is the most appropriate statement about the figure?

• A. The atomic level decrease from molecular level to human beings.
• B. At each tropic level the pollutants get approximately 10 times concentrated.
• C. The level of pollutants is maximum at molecular level in minimum in human beings.
• D. Repeated use of toxins reduces its concentration at highest level.

Answer 1

Answer: (B)

At each tropic level the pollutants get approximately 10 times concentrated.

Most of the organic toxins are not soluble in water and are non biodegradable too. Pollutants moves through various tropic levels in an ecosystem. These toxins are transferred from lower tropic level to higher tropic level through food chain. These pollutants becomes more concentrated as we move up the tropic levels.