Biomagnification is:

Amount of CO inseparably combined with haemoglobin

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Rate of increase of biomass

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Increase in pollutants at successive trophic levels

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Nutrient enrichment of a water body

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Solution

The correct option is C Increase in pollutants at successive trophic levels
Biomagnification refers to the increase in the concentration of pollutant/toxicant at successive trophic levels. This happens when a toxic substance accumulated by an organism cannot be metabolised or excreted and thus, is passed on to the next higher trophic level in the food chain. This phenomenon is well known for mercury and DDT.

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Similar questions

Q. Match and find the correct combination.

(a)	Eutrophication	(i)	Rise in sea level
(b)	Biomagnification	(ii)	Water Hyacinth
(c)	Terror of Bengal	(iii)	Increase in quantity of pollutant at successive trophic levels
(d)	Green house effect	(iv)	Enrichment with nutrients

Q. Match the following

1. Eutrophication	I. Rise in sea level
2. Biomagnification	II. Water hyacinth
3.Terror of Bengal	III. Increase of quantity of pollutant at successive trophic levels
4. Green house effect	IV. Enrichment with nutrients

Q. Biomagnification refers to an increase in the concentration of the toxicant at successive trophic levels. This happens because

Q. Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as :
(a) eutrophication
(b) pollution
(c) biomagnification
(d) accumulation

Question 5
Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as

(a) eutrophication
(b) pollution
(c) biomagnification
(d) accumulation

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