7th Class Social Science Sample Paper Social Studies - Sample Test Paper-8

  • question_answer
    How does carbon dioxide released in the atmosphere creates a green house effect?

    A)  By trapping the heat radiated from the Earth

    B)  By giving a blanket of protection, without which we would be baked alive by the heat of the sun during day and get frozen during night

    C)  By being an essential part of the life-cycle of plants  

    D)  All of these

    E)  None of these

    Correct Answer: A


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