8th Class Social Science Sample Paper Social Studies - Sample Test Paper-10

  • question_answer 21) The process of extracting metals from their ores by heating beyond the melting point is known as:

    A)  Smelting          

    B)  Open Casting

    C)  Drilling

    D)  All of these

    E)  None of these

    Correct Answer: A

    Solution :

    Not Available

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