MINERAL AND ENERGY RESOURCES IN INDIA
MINERALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Quarrying
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Drilling
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Shaft mining
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Open cast mining
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Detailed explanation-1: -Deep wells are bored to take them out, this is called drilling (Fig 3.4). Minerals that lie near the surface are simply dug out, by the process known as quarrying.
Detailed explanation-2: -The correct option is B drilling.
Detailed explanation-3: -In the chapter, Mineral and Power Resources Class 8 notes, Minerals can be extracted by mining, drilling or quarrying. The process of taking out minerals from rocks buried under the earth’s surface is called mining.
Detailed explanation-4: -The production stage is the most important stage of a well’s life; when the oil and gas are produced. By this time, the oil rigs and workover rigs used to drill and complete the well have moved off the wellbore, and the top is usually outfitted with a collection of valves called a Christmas tree or production tree.
Detailed explanation-5: -Thus, the correct answer is Option (C) i.e, Minerals lying near the surface can be extracted by a simple process called quarrying.