Environmental Sciences, asked by siddharth8910, 1 year ago

bdte vayu pradusan aur bdti jansankhya ke chalte hme bhavisya me oxygen ki kami ho skti hsai ek bhavisya jisme oxygen ko kharidna b pde isko lekar ek vigyapan btaye

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Answered by ActionRaja7
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pradusan aur bdti jansankhya ke chalte hme bhavisya me oxygen ki kami ho skti hsai ek bhavisya jisme oxygen ko kharidna b pde isko lekar ek vigyapan btaye
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