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NEET UG BIOLOGY MCQ: ENVIRONMENTAL ISSUES
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What device is fitted to automobiles for reducing the emission of poisonous gases like and CO?
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Correct option: A
Catalytic converters
Option A (Catalytic converters) is correct because catalytic converters are designed to reduce the emission of poisonous gases like nitrogen oxides and carbon monoxide from automobiles.
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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