Question

Study the given diagram and answer the following question.

Which is the most appropriate statement about the figure?

• A. The trophic levels 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 and 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.

Answer 2

: Most of the pesticides and other non-biodegradable toxins are transferred from lower trophic level to higher trophic level through food chain. At every level the concentration of toxins increases ten times.