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How do transportation activities impact the environment in terms of air pollution?
  • a)
    Releasing millions of tons of gases into the atmosphere
  • b)
    Enhancing oxygen levels in the atmosphere
  • c)
    Decreasing the levels of greenhouse gases
  • d)
    Improving air quality in urban areas
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
How do transportation activities impact the environment in terms of ai...
Transportation activities significantly impact the environment by releasing several million tons of gases into the atmosphere each year. These gases include lead (Pb), carbon monoxide (CO), carbon dioxide (CO2), methane (CH4), nitrogen oxides (NOx), nitrous oxide (N2O), chlorofluorocarbons (CFCs), perfluorocarbons (PFCs), heavy metals (zinc, chrome, copper, and cadmium), and particulate matters (ash, dust). This pollution contributes to various environmental and health issues, making it crucial to address and regulate transportation emissions.
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Most Upvoted Answer
How do transportation activities impact the environment in terms of ai...
Impact of Transportation Activities on Air Pollution
Transportation activities play a significant role in air pollution, primarily through the release of harmful gases. Here's a detailed explanation of why option 'A' is the correct answer:
Releasing Millions of Tons of Gases
- Combustion of Fossil Fuels: Most transportation modes, such as cars, trucks, airplanes, and ships, rely on fossil fuels. The combustion process releases a variety of pollutants, including:
- Carbon Dioxide (CO2)
- Nitrogen Oxides (NOx)
- Sulfur Dioxide (SO2)
- Particulate Matter (PM)
- Volume of Emissions: Transportation is responsible for a substantial portion of global greenhouse gas emissions. For instance:
- In urban areas, transportation sources contribute significantly to local air quality issues.
- An estimated 14% of global greenhouse gas emissions come from the transportation sector.
Effects on Air Quality
- Health Impacts: The pollutants emitted can lead to serious health problems, including respiratory diseases, heart conditions, and other chronic illnesses.
- Environmental Degradation: Airborne pollutants can also contribute to acid rain and smog, harming ecosystems and reducing visibility.
Conclusion
In summary, transportation activities significantly impact the environment by releasing millions of tons of harmful gases into the atmosphere, leading to air pollution and related health and environmental issues. This makes option 'A' the correct choice, as it accurately reflects the detrimental effects of transportation on air quality.
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