Which industry is often called backbone of modern industries ?

  1. Steel
  2. Petroleum
  3.  Energy
  4.  Transport
Anurag Mishra Professor Asked on 19th December 2015 in Science.
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  • 1 Answer(s)

    Answer:  (1) Steel (1) 

    Anurag Mishra Professor Answered on 19th December 2015.
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