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Among NO and NO(2),..........is more ha...

Among NO and `NO_(2)`,..........is more harmful.

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**Step-by-Step Solution:** 1. **Identify the Compounds**: The question asks to compare the harmfulness of two nitrogen oxides: Nitric Oxide (NO) and Nitrogen Dioxide (NO2). 2. **Understand the Sources**: Nitrogen Dioxide (NO2) is primarily produced from combustion processes, such as the burning of fossil fuels and vehicle emissions. This is a significant source of air pollution. 3. **Evaluate the Effects of NO2**: Nitrogen Dioxide is known to be a major air pollutant. It can cause respiratory diseases in humans and is harmful to the environment. It damages plant foliage, reduces crop yield, and can lead to the formation of secondary pollutants like ozone and particulate matter. ...
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