2. Questions Bank
  3. 8th Class
  4. Science
  5. Coal and Petroleum

8th Class Science Coal and Petroleum Question Bank Coal and Petroleum Formative Subjective Problems

  • question_answer
    Fill in the blanks (i) __ is obtained from the coal tar and used to repel moths and insects. (ii) __ is used for road surfacing these days. (iii) The first oil was drilled at

    Answer:

    (i) Napthalene balls                         (ii) Bitumen (iii) Pennsylvania USA in 1859.


You need to login to perform this action.
You will be redirected in 3 sec spinner