Multiple choice general knowledge science & technology

Nearly 50% of our air pollution is a consequence of __________.

  1. fuel combustion for transportation

  2. automobile factories

  3. heat production for houses

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Transportation fuel combustion (cars, trucks, planes, ships) is indeed responsible for nearly half of air pollution globally. While factories (B) and heating (C) contribute, the transportation sector is the largest single source. 'None of the above' is incorrect because A is accurate.

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