5.
Increased concentration of DDT in fish-eating birds is due to
(a) eutrophication
(b) bio-magnification
(c) cultural eutrophication
(d) accelerated eutrophication
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Explanation:
This is called (a) Red tide (b) Bio- magnification (c) Algal bloom (d) Biofortification ... of these If the water contains 0.003ppb of DDT then fish eating birds contain what level of DDT
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