2. Sample Papers
  3. 7th Class
  4. Social Science

7th Class Social Science Sample Paper Social Studies - Sample Test Paper-4

  • question_answer
    Which of the following is also known as greenhouse gas?

    A)  Oxygen         

    B)  Hydrogen

    C)  Carbon dioxide   

    D)         Helium

    E)  None of these

    Correct Answer: C

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