4 Types of mining activities to supply a lifetime people needs hobigame?

Question: 4 Types of mining activities to supply a lifetime people needs hobigame?

1. Surface Mining: Surface mining is the extraction of minerals, metals, coal, oil, and other resources near the Earth’s surface by removing the overlying soil and rock. This type of mining is sometimes referred to as “strip mining” or “open cast mining.”

2. Subsurface Mining: Subsurface mining refers to the extraction of minerals, metals, coal, oil, and other resources located deep below the Earth’s surface. This type of mining is done by digging or drilling deeper into the Earth to reach the desired resource.

3. Placer Mining: Placer mining is used to extract gold and other metals from sediment deposits in stream beds and beach sands. This type of mining usually uses a mechanical dredge to remove the sand and gravel from the sediment.

4. Hard Rock Mining: Hard rock mining is used to extract hard minerals such as gold, silver, lead, nickel, and copper.

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