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(C) The increase in the concentration of toxic substances at successive trophic levels is known as biomagnification.This occurs because a toxic substa

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biomagnification

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(C) The increase in the concentration of toxic substances at successive trophic levels is known as biomagnification.This occurs because a toxic substance accumulated by an organism cannot be metabolized or excreted,and thus is passed on to the next higher trophic level.For example,$DDT$ is a persistent pesticide that accumulates in the fatty tissues of organisms.As it moves up the food chain,its concentration increases significantly per unit weight of the organism.For instance,the concentration of $DDT$ in water is $0.003 \ ppb$,which increases to $0.003 \ ppm$ in phytoplankton,$0.04 \ ppm$ in zooplankton,$0.5 \ ppm$ in small fish,$2.0 \ ppm$ in large fish,and reaches $25 \ ppm$ in fish-eating birds.

Column-$I$	Column-$II$
$(1)$ Electrostatic precipitator	$(a)$ Removes gases like $SO_2$
$(2)$ Scrubber	$(b)$ Reduces automobile emission
$(3)$ Catalytic converter	$(c)$ Removes particulate matter

Increase in concentration of the toxicant at successive trophic levels is known as

Similar Questions

Euro-$II$ emission norms were introduced for reducing which of the following?

Match the columns:

Column-$I$ Column-$II$

$(1)$ Electrostatic precipitator $(a)$ Removes gases like $SO_2$

$(2)$ Scrubber $(b)$ Reduces automobile emission

$(3)$ Catalytic converter $(c)$ Removes particulate matter

The pollutants which are already present in nature,but are released in substantial amounts by man are known as

The effect of pollution is first marked on:

Which one of the following is not correct with regard to the harmful effects of particulate matter of the size $2.5 \ \mu m$ or less?

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