NCERT Important Questions Class 9 Science biology Chapter 14
Important NCERT Extra Questions
Chapter 14 Natural Resources
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
What is biomagnification? Name two heavy metals which, when magnified resulted in diseases in humans.
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The phenomenon of increase in the concentration of harmful non-biodegradable substances in the body of living organisms at each trophic level of the food chain is called bio magnification. Two heavy metals which are biomagnified are mercury and cadmium.