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Causes of Pollution: Biology MCQs App Download & e-Book - 935

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MCQ: 935

Reaction between oxides of nitrogen (N2) and oxygen (O2) results in

  1. formation of nitric acid only
  2. acid rains only
  3. alkali rain
  4. formation of nitric acid and acid rains

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Causes of Pollution Biology Apps (Android & iOS)

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