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प्रश्न
Give reason.
Petroleum is referred to as “black gold”.
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उत्तर
The term “black gold” is used with reference to petroleum and its various derivatives. The word “black” refers to the colour of petroleum in its crude form. The word “gold” implies that petroleum and all the various products of petroleum (like diesel, petrol, kerosene, wax, plastics and lubricants) are as valuable to human society as the metal gold.
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संबंधित प्रश्न
Explain the occurrence of petroleum in India.
Mention one advantage of the use of natural gas over coal or petroleum
Name any three types of coal found in India.
Distinguish between the following.
Biogas and natural gas
Where does India stand in the production of coal?
Which varieties of coal is used for domestic purposes and why?
Name two important Oil fields in India.
Name the following:
Iron ore mine in Karnataka
Name the oldest and the largest coal field in India.
Name two coastal oil-refineries in India.
