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  5. Rocks and Soil / चट्टानें और मिट्टी

2nd Class EVS Rocks and Soil / चट्टानें और मिट्टी Question Bank Rock and Minerals

  • question_answer
    Which of the following is the hardest rock?

    A)  Plastic                                 

    B)  Graphite            

    C)         Diamond            

    D)         Gemstone

    Correct Answer: C

    Solution :

    Diamond is the hardest rock.


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