2. Sample Papers
  3. 4th Class
  4. Science

4th Class Science Sample Paper Science Olympiad Model Test Paper-14

  • question_answer
    Which of the following protects us from UV rays of sun?

    A) Ozone  

    B) Exosphere

    C) Troposphere                  

    D) Mesosphere

    E) None of these

    Correct Answer: A

    Solution :

    Not Available  


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