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Water rarr zooplankton rarr small fish r...

Water `rarr` zooplankton `rarr` small fish `rarr` large fish `rarr` fish eating birds
In the above food chain If concentration of DDT is 0.003ppb the mention its concentration at successive trophic levels.

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The correct Answer is:
`{:(" Water"),((.003 ppb)),(" "darr),(" "zp),((".004 ppm")),(" "darr),(" sf"),((.5 "ppm")),(" "darr),("LF (2-5 ppm)"),(" "darr),("Birds (25 ppm)"):}`
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