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NEET UG BIOLOGY MCQ: ENVIRONMENTAL ISSUES
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Consider the following statements I. Reforestation is the process of restoring a forest that once existed but was removed at some point of time in the past II. Reforestation may occur naturally in a deforested area III. A tree plantation movement or Van Mahotsava is being carried out in India since 1982 Which of the statements given above are correct?
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Correct option: A
I and II
Option A (I and II) is correct because reforestation is restoring a forest and can occur naturally.
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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
