हिंदी

Which of the following elements is both a water pollutant and air pollutant? -

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प्रश्न

Which of the following elements is both a water pollutant and air pollutant?

विकल्प

  • Sulphates

  • Carbon monoxide

  • Ammonia

  • Mercury

MCQ

उत्तर

Ammonia

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Environmental Pollution - Introduction
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