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NEET UG BIOLOGY MCQ: ENVIRONMENTAL ISSUES
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Which statement represents the harmful effect of depletion of earth’s ozone layer?
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Correct option: C
Increased amount of ultraviolet radiation will reach earth’s surface
Option C (Increased amount of ultraviolet radiation will reach earth’s surface) is correct because ozone layer depletion allows more harmful UV radiation to penetrate the atmosphere and reach the Earth's surface.
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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