Which type of pollutants is mainly responsible for biological magnification?
Non-biodegradable pollutants
Biological magnification is the progressive increase in the concentration of a harmful substance in the bodies of organisms as one moves from lower to higher trophic levels in a food chain.
For this to happen, the pollutant must be stable, fat-soluble and resistant to breakdown by natural processes so that it is not excreted or degraded but keeps accumulating in living tissues.
Non-biodegradable pollutants such as DDT, mercury and other heavy metals meet all these conditions, which is why they get magnified along the food chain, while thermal, noise and decomposable pollutants do not persist in this way.
Hence, the correct answer is Non-biodegradable pollutants.
What is the role of decomposers in an ecosystem?
Why are non-biodegradable wastes considered more dangerous than biodegradable wastes?
All of the following are ways to restore Earth’s natural systems EXCEPT, _________.
Consider the following statements and select the correct option.
Statement 1: Food chains in an ecosystem are interlinked to form a food web.
Statement 2: Food webs show the interdependence of organisms.
A conservation biologist is designing a strategy to protect the Nilgiri tahr, which is found only in a specific Indian region. Which approach would be most appropriate for its conservation, based on its classification?
In an ecosystem, what is the role played by decomposers?
Why is composting considered environmentally beneficial?
Why cannot pesticide residues always be removed from food by washing?
In a garden ecosystem with rose plants, jasmine plants, insects, snake, and birds, which group captures solar energy and converts it into food for other organisms?
Which of the following best describes a food web?
Which of the following observations about intermediality are true:
A. The rise in status of landscape painting in the late 18th and 19th centuries influenced the English novelists to depict it in their novels.
B. Non-literary media in different epochs has affected the picturization, the musicalization or the filmization of novels.
C. The 'Gutenberg revolution' is marked by transition form written to oral tradition.
D. Heminge and Candell employed the folio format for the 1623 edition of Shakespeare's plays.
E. The increasing literacy in England made the printing and supply of books costly.
Choose the correct answer from the options given below: