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NEET UG BIOLOGY MCQ: ENVIRONMENTAL ISSUES
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The scrubber is used mainly to remove which of the following gases from the exhaust after spraying water/lime?
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Correct option: B
Option B () is correct because scrubbers are primarily used to remove sulphur dioxide () from exhaust gases by spraying water or lime.
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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