1.Eutrophication is caused bya.Increase in nutrient concentrationb.Petrochemical and fertilizer plant effluentsc.NO3−\mathrm{NO_3^-}NO3− and SO42−\mathrm{SO_4^{2-}}SO42− present in acid rainsd.Mine effluentsLogin to continueOnly logged in users canattempt or see the solution.
