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पाठ्यक्रम

This air pollutant ______ also called a laughing gas is lethal to human beings at exposure to 100 ppm or more. -

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प्रश्न

This air pollutant ______ also called a laughing gas is lethal to human beings at exposure to 100 ppm or more.

विकल्प

  • NO (Nitric Oxide)

  • NO2 (Nitrogen di Oxide)

  • N2O (Nitrous Oxide)

  • N2O3 (Dinitrogen Trioxide)

MCQ
रिक्त स्थान भरें

उत्तर

This air pollutant N2O (Nitrous Oxide) also called a laughing gas is lethal to human beings at exposure to 100 ppm or more.

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Environmental Issues - Air Pollution and Its Causes
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