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148.) Pollution in big cities can be controlled to a large extent by(a) Improving traffic condition and road(b) Road side plantation(c) proper disposal of garbage and domestic as well asmunicipal wastes(d) Avoiding use of fertilisers and pesticides(1) (a) and (b)(2) (a), (b) and (c)(3) (a) and (d)(4) All of these |
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Answer» all of these Explanation: |
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