Question

What are the 4 types of surface mining?

1) Open-pit mining
2) Strip mining
3) Mountaintop removal mining
4) Placer mining

Answer 1

The four types of surface mining are open-pit mining, strip mining, mountaintop removal mining, and placer mining.

Step-by-step explanation:

The four types of surface mining are:

1. Open-pit mining: This is a type of mining where a large pit or hole is dug to extract minerals or ore from the ground. It is commonly used for minerals like copper, gold, and iron.
2. Strip mining: In strip mining, the surface layer of soil and rock is removed to expose the mineral deposits. This method is often used for coal and sand mining.
3. Mountaintop removal mining: This practice involves removing the top of a mountain to expose coal seams. It causes significant environmental damage by destroying habitats and burying streams.
4. Placer mining: Placer mining involves extracting minerals from loose deposits, such as gravel or sand, by washing or dredging. It is commonly used for mining gold and gemstones.