issb general knowledge MCQ #906

Which layer contains the ozone layer (wave 14)?

issb general knowledge MCQ #906

  1. Question 1

    Q1. Which layer contains the ozone layer (wave 14)?

    • A) Stratosphere
    • B) Troposphere
    • C) Mesosphere
    • D) Thermosphere

    Answer: Stratosphere

    Explanation: Most ozone is concentrated in the stratosphere. Work each step carefully; ISSB math rewards accuracy under time pressure.