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NEET UG BIOLOGY MCQ: ENVIRONMENTAL ISSUES
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Which treaty is related to the control of the emission of ozone-depleting substances (ODS)?
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Correct option: A
Montreal Protocol (Canada) in 1987 and effective in 1989
Option A (Montreal Protocol (Canada) in 1987 and effective in 1989) is correct because the Montreal Protocol is an international treaty designed to protect the ozone layer by phasing out the production and consumption of ozone-depleting substances.
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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