Supersonic aircraft induce pollution through the depletion of:
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Answer: A. O3 layer
Explanation
Supersonic aircraft release exhaust emissions directly into the stratosphere, catalyzing ozone layer depletion. High-altitude flight operations introduce nitrogen oxides and other pollutants that break down ozone molecules. Stratospheric chemistry is highly sensitive to chemical pollutants injected by fast-flying commercial jets. The ozone layer resides in the stratosphere, absorbing harmful ultraviolet radiation from the sun. Supersonic transport operates at higher altitudes than conventional subsonic commercial airliners. Chemical catalysts destroy ozone molecules much faster than natural atmospheric processes can regenerate them.
Environmental regulations restrict aircraft emissions to protect the stratospheric ozone layer from degradation. Depletion of atmospheric ozone increases human health risks associated with excessive ultraviolet radiation exposure. Aviation industry research continues working on cleaner engine technologies to minimize high-altitude pollution. Option B is incorrect because sulfur dioxide is primarily associated with industrial coal burning and volcanoes. Option C is incorrect because oxygen gas makes up the bulk of the lower atmosphere and is not depleted. Option D is incorrect because carbon dioxide is a greenhouse gas accumulating mainly in the troposphere.
- Subject
- Agriculture
- Category
- Forestry
- Topic
- —
- Difficulty
- medium
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