High School

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Which isn't a type of mining that was discussed in Chapter 8?

A. Surface mining
B. Subsurface mining
C. Placer mining
D. Genetic mining

Answer :

Final answer:

Genetic mining is not a type of mining discussed in the material, which covers surface mining, subsurface mining, and placer mining as methods based on the depth and nature of the mineral deposit.The correct multiple-choice option is (d).

Explanation:

The type of mining that was not discussed in Chapter 8 is d) Genetic mining. The chapter covers various methods of mining based on the depth and nature of the mineral deposit. These include surface mining, which is suitable for minerals that are close to the Earth's surface and involves techniques like open-pit mining, strip mining, and placer mining. Subsurface mining is used for deposits that are found deeper below the Earth's surface. This method includes tunneling or digging shafts to access the mineral deposits. Placer mining is a method of surface mining used to extract minerals from sediments in river channels, beach sands, or other environments.The correct multiple-choice option is (d).

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