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प्रश्न
Explain the occurrence of petroleum in India.
उत्तर
Occurence of Petroleum
1. Most of the petroleum occurrences in India are associated with anticlines and fault traps in the rock formations of the tertiary age.
2. In regions of folding, anticlines or domes, it occurs where oil is trapped in the crest of the up-fold.
3. The oil bearing layer is a porous limestone or sandstone through which oil may flow.
4. Petroleum is also found in fault traps between porous and non-porous rocks.
5. Gas, being lighter usually occurs above the oil.
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संबंधित प्रश्न
Classify energy resources into two categories. Give two examples of each category.
Which of the different varieties of coal is used for domestic purposes and why?
Give reasons.
Most industries are concentrated around coal mines.
Give reason.
Petroleum is referred to as “black gold”.
What are the four main varieties of coal?
Name any two important petroleum drilling centres for each of these states:
(i) Gujarat (ii) Assam
Name two oil refineries in the public sector one each in Assam and Gujarat.
Name two important Oil fields in India.
Name two industries that use a high quantity of coal.
Give two advantages of using Natural gas over coal.
