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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.
संबंधित प्रश्न
Highlight the importance of petroleum
How do minerals occur in sedimentary rocks?
Name any three types of coal found in India.
Classify the coal fields in India. Name state for each classification.
Why petroleum is called mineral oil? Write its two uses.
Give geographical reasons for the following:
The location of coal fields is an important factor in industrial development.
Give geographical reasons for the following:
Oil refineries are located close to oil fields or near ports.
Name two oil refineries in the public sector one each in Assam and Gujarat.
Name two coastal oil-refineries in India.
Give two advantages of using Natural gas over coal.
