Baalo ka jhadna rokne hetu tel ka vigyapan tayyar karo slogan ke saath
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slogan:tel lagao baal badhao
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Due to the phenomenon of Biomagnification , due to which ddt goes on increasing on higher trophic levels . From phytoplanktons which got it accumulated( from polluted water ),to zooplanktons ,fish,and finally to human being.As it can't be digested and excreted it goes on accumulating.
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