2. Questions Bank
  3. 10th Class
  4. Social Science
  5. Lifelines of National Economy

10th Class Social Science Lifelines of National Economy Question Bank Very Short Answer Type - Lifelines of National Economy

  • question_answer
    What do you mean by first class mail service?

    Answer:

    First class mail includes cards and envelopes and are air-lifted between stations covering both land and air.


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