2nd Class Science Rocks and Soil Question Bank Rock and Minerals

  • question_answer 20) A soft, white rock that is used to write on blackboards is

    A)  graphite.                            

    B)  chalk.  

    C)         talc.                      

    D)         quartz.

    Correct Answer: B

    Solution :

    Chalk is a soft white rock used to write on the blackboard.

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