Match the columns and find correct option.

I(Organisms) II(DDT in ppm)
(a) Zooplankton (p) $0.003$ ppm
(b) Small fishes (q) $2.0$ ppm
(c) Water (r) $25.0$ ppm
(d) Fish eating birds (s) $0.04$ ppm
(e) Big fishes (t) $0.5$ ppm

a-s, b-t, c-p, d-r, e-q

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a-s, b-t, c-r, d-q, e-p

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a-s, b-t, c-p, d-q, e-r

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a-q, b-p, c-s, d-t, e-r

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Solution

The correct option is A a-s, b-t, c-p, d-r, e-q
Biomagnification refers to an increase in the concentration of the toxicant at successive trophic levels. This happens because a toxic substance accumulated by an organism cannot be metabolized or excreted, and is thus passed on to the next higher trophic level. This phenomenon is well-known for mercury and DDT.
Biomagnification of DDT in an aquatic food chain as follows,
(a)Zooplankton - (s)0.04ppm.
(b)Small Fishes - (t)0.5ppm.
(c)Water -(p)0.003ppm.
(d)Fish-eating birds -(r)25.0ppm.
(e)Big Fishes - (q)2 ppm.

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	I(Organisms)		II(DDT in ppm)
(a)	Zooplankton	(p)	$0.003$ ppm
(b)	Small fishes	(q)	$2.0$ ppm
(c)	Water	(r)	$25.0$ ppm
(d)	Fish eating birds	(s)	$0.04$ ppm
(e)	Big fishes	(t)	$0.5$ ppm

Match the columns and find correct option.I(Organisms)II(DDT in ppm)(a)Zooplankton(p)0.003 ppm(b)Small fishes(q)2.0 ppm(c)Water(r)25.0 ppm(d)Fish eating birds(s)0.04 ppm(e)Big fishes(t)0.5 ppm

Match the columns and find correct option.

I(Organisms) II(DDT in ppm)
(a) Zooplankton (p) $0.003$ ppm
(b) Small fishes (q) $2.0$ ppm
(c) Water (r) $25.0$ ppm
(d) Fish eating birds (s) $0.04$ ppm
(e) Big fishes (t) $0.5$ ppm