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NEET UG BIOLOGY MCQ: ENVIRONMENTAL ISSUES
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Which one of the following is an environment-related disorder with the correct main cause?
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Correct option: B
Blue baby disease (methaemoglobinaemia) due to heavy use of nitrogen-rich fertilisers in the area.
Option B (Blue baby disease) is correct because methaemoglobinaemia is directly linked to nitrate contamination from nitrogen-rich fertilizers.
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(i) Lost of urea and phosphate fertilizer were used in the crops in the vicinity
(ii) The area was sprayed with DDT by an aircraft
(iii) The lake water turned green and stinky
(iv) Phytoplankton populations in the lake declined initially thereby greatly reducing photosynthesis. Which of the following is not used for disinfection of drinking water? World most problematic aquatic weed is