Q. Consider the following statements:
1.Petroleum in India is primarily found in sedimentary rocks of the tertiary period.
2.Digboi is an example of a market-based refinery, whereas Barauni is a field-based refinery.
3.Natural gas is found in association with crude petroleum and is now increasingly used as transport and domestic fuel.
Which of the statements given above is/are correct?
Quarterly-SFG-Jan-to-March
Red Book

[A] 1 and 3 only

[B] 2 and 3 only

[C] 1 and 2 only

[D] 1, 2, and 3

Answer: A
Notes:

Explanation:

  • Petroleum in India is found in tertiary sedimentary rocks. Before ONGC was set up in 1956, Digboi in Assam was the only oil-producing region.
  • Digboi is a field-based refinery (near the oil field), and Barauni is a market-based refinery (near consumption centers).
  • Natural gas is associated with petroleum and is now being used widely as a transport fuel (CNG) and cooking fuel (PNG) due to expansion in infrastructure and city distribution networks.

Source: Class 12 NCERT India People And Economy

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