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Citizenship and environment

Of the items listed below, the following does not contribute to air pollution:

  1. soot
  2. water vapourCorrect answer!
  3. open burning
  4. carbon monoxide

Explanation

The correct answer is option 2 (water vapour). This question assesses Citizenship and environment; this alternative directly meets the conditions in the prompt and the road-safety rules. The other alternatives broaden, narrow, or depart from the stated conditions and therefore should not be selected. Under the current rule, the difficulty is 2 on a scale from 1 to 5.

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