Driving theory questions
This is an old question that is no longer in use.
Images may be missing and the information may be dated.
What is true when it comes to the development of the air quality in built-up areas since the early 1990s?
“The levels of soot have been reduced by approximately 60 per cent since 1990. [...] Nitric oxide emissions have been reduced by approximately 60 per cent since the base year of 1990. [...] Hydrocarbon emissions have been reduced by approximately 80 per cent since 1990.” (Swedish Transport Administration)
“The air quality has been significantly improved in built-up areas since the 1990s.” (The Swedish Environmental Protection Agency)
Useful links:
- Pollutants (Körkortonline.se)
Körkortonline.se offers driving licence theory tests. This is an example of an explanation of a test question. English theory test (free demo), Swedish theory test (free demo).
More examples of explanations:
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Category:
- Driving theory questions: Vehicle
- Driving theory questions: Environment
- Driving theory questions: Traffic safety
- Driving theory questions: Traffic regulations
- Driving theory questions: Individual circumstances
- Driving theory questions: Road signs
