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NEET UG BIOLOGY MCQ: ENVIRONMENTAL ISSUES
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Which of the following is not a green house gas?
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Correct option: D
Oxygen
Option D (Oxygen) is correct because oxygen is not a greenhouse gas; it does not trap heat in the atmosphere.
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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