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NEET UG BIOLOGY MCQ: ENVIRONMENTAL ISSUES
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Which one of the following is a correct option with reference to pathogenic bacteria and DDT?
View answer and explanation
Correct option: B
Bacteria can be degrades by living cells and DDT can not be degraded by living cells.
Option B (Bacteria can be degrades by living cells and DDT can not be degraded by living cells) is correct because bacteria are biodegradable, while DDT is a persistent organic pollutant that resists degradation by living organisms.
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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