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Question : Some statements are given below each with one or two blanks. Select the option that correctly fills up the blanks. (i) High concentration of DDT disturbs ____ in birds, which causes ____. (ii) ____ burns more efficiently as compared to petrol and diesel. (iii) ___ is the natural ageing of a lake which occurs due to accumulation of ____. (iv) ______ reduces the number of organisms which are sensitive to high temperature. (v) Irreparable computers and other electronic goods are known as ____. |
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Answer» (i) calcium METABOLISM, thinning of egg shell (II) CNG (iii) Eutrophication, nitrates and phosphates (iv) THERMAL wastewater (v) electronic waste |
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