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Drag and drop each mining process with its description.

1. **Subsurface Mining**:
- Uses underground tunnels to reach minerals below the surface.

2. **Mountaintop Removal**:
- Uses explosives to remove trees and rocks from coal deposits.

3. **Placer Mining**:
- Used to retrieve gold from ancient riverbeds.

4. **Strip Mining**:
- Used to get minerals that are just below the surface.

5. **Undersea Mining**:
- Used to get minerals found deep on the ocean floor.

Answer :

Final answer:

The mining processes include strip mining, mountaintop removal, placer mining, subsurface mining, and undersea mining, each with distinct methods for extracting minerals based on their location. Surface mining techniques involve removing overburden to access minerals near the Earth’s surface, whereas subsurface mining utilizes tunnels for deeper deposits. Placer and undersea mining focus on specific resource types in riverbeds and ocean floors, respectively.


Explanation:

Mining Processes and Their Descriptions


Mining processes can be categorized based on whether they occur at the surface or below the surface of the Earth. Here are some key mining methods along with their descriptions:



  • Strip Mining: A method that involves removing overburden (the layer of earth and rock above the mineral deposit) in strips. This technique is used for minerals that are found near the surface.

  • Mountaintop Removal: This surface mining method involves the use of explosives to remove all of the overburden and exposing the entire coal seam at once. The excess materials are often dumped in nearby valleys.

  • Placer Mining: This process retrieves minerals, such as gold, from ancient riverbeds or other sediment by using water to wash away the lighter materials, leaving the denser minerals behind.

  • Subsurface Mining: Also known as underground mining, this method uses underground tunnels to access minerals that are located deep below the Earth’s surface, making it more expensive but sometimes necessary for valuable resources.

  • Undersea Mining: This involves extracting minerals from the ocean floor. It targets resources such as polymetallic nodules and can be quite challenging due to underwater conditions.


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