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NEET UG BIOLOGY MCQ: ENVIRONMENTAL ISSUES
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Fluoride pollution mainly affects
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Correct option: A
Teeth
Option A (Teeth) is correct because fluoride pollution primarily affects teeth, causing dental fluorosis.
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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
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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