everyday science MCQ #3226

The least polluting gas is:

everyday science MCQ #3226

  1. Question 1

    Q1. The least polluting gas is:

    • A) Carbon
    • B) Nitrogen
    • C) Chlorine
    • D) None of these

    Answer: Nitrogen

    Explanation: Nitrogen is the scientifically accurate choice. The concept tested here is core everyday science for MDCAT, ECAT, and general ability papers.