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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
Highlight the importance of petroleum
Give reasons.
Most industries are concentrated around coal mines.
Distinguish between the following.
Biogas and natural gas
Why does India have to import oil?
State two main drawbacks of the Coal found in India.
Oil refineries are located close to oil fields or near ports.
Name three important states which form the tertiary coal distribution chain.
Name the following:
Iron ore mine in Karnataka
Name the oldest and the largest coal field in India.
Name two industries that use a high quantity of coal.
