How is coal extracted from mountaintop removal mines quizlet?

How is coal extracted from mountaintop removal mines? Dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal.

How is coal removed from the ground and used quizlet?

Surface Mining (Strip, Open Pit, Mountain top Removal) is used when coal is near the surface. Soil and rock overlying the deposit are removed to retrieve the deposit. Deep mining (underground) drills tunnels into the earth for extraction.

Which of the following methods of extraction is the most damaging to the environment quizlet?

Surface mines are the most damaging to the environment, because they cause the greatest amount of change to the land. Surface mines involve the removal of earth to extract minerals, often leaving a gaping hole behind.

What are the two methods used to mine coal quizlet?

Two methods: surface or underground mining with giant machines.

Which method of extracting coal is safer for miners quizlet?

Subsurface mining is only useful for thick seams of coal whereas MTR is used when coal is present in many thinner seams. MTR is safer for the worker but not for the surrounding community; it does more damage to the area around the mine and leaves behind a very different ecosystem.

The Land of Mountaintop Removal

What is the process of mining coal?

What are two major methods of obtaining coal from the ground compare these two methods quizlet?

The process of doing this is that shafts are produced vertically and tunnels are made horizontally to expose the resource while strip mining is the process used in mining wherein layer by layer, surfaces of rocks are removed to slowly show the resource to be obtained.

Where does mountaintop removal happen?

Where is mountaintop removal happening? Mountaintop removal takes place primarily in eastern Kentucky, southern West Virginia, southwestern Virginia, and eastern Tennessee.

What are some advantages of mountaintop removal compared to subsurface mining quizlet?

Subsurface mining has less impact on the surrounding landscape than surface mining.. Coal companies have lower payroll costs because they need fewer miners. Mountaintop removal is less dangerous for miners. Mountaintop removal allows miners to access thinner coal seams.

What are some advantages of mountaintop removal compared to subsurface mining?

Which mining technique involves explosives and heavy machinery to remove rock and soil above the mineral deposit quizlet?

Mountaintop Removal Mining is highly controversial, and best suited for retrieving mass amounts of minerals, usually coal, from mountain peaks. The process involves blasting the overburden with explosives above the mineral seam to be mined.

Which type of mining is most damaging to the environment?

Coal mining

The environmental factors of the coal industry are not only impacting air pollution, water management and land use but also is causing severe health effects by the burning of the coal.

Why is open pit mining so devastating to the environment quizlet?

Terms in this set (12) Why does mining have such an impact on the environment? Because minerals are within the Earth's surface, extraction causes destruction.

How is the coal transported to the power plant quizlet?

how does a coal burning plant work? coal is burned which turns into water then steam. the steam then pushes the turbine and the shaft in the middle generates electricity. the electricity is then transported along the electrical grid and into houses.

How is coal used quizlet?

Coal is used primarily as an energy source, either for heat or electricity. What is Coal used for? Bituminous coal is also used to produce coke for making steel and other industrial process heating.

What are the advantages of surface mining of coal compared to underground mining What are the disadvantages of surface mining?

The pros of surface mining are that it has a lower financial cost and is a lot safer than underground mining because all mining operations take place above the surface. The cons are the hazards it presents to human health and the environment.

How is coal extracted from mountaintop removal mining?

Mountaintop removal coal mining is a destructive form of extracting coal in which companies use heavy explosives to blast off hundreds of feet from an ancient mountain ridge to access thin seams of coal below.

How is mountaintop removal mining done?

How It's Done. Coal companies first raze an entire mountainside, ripping trees from the ground and clearing brush with huge tractors. This debris is then set ablaze as deep holes are dug for explosives. An explosive is poured into these holes and mountaintops are literally blown apart.

Why do coal companies use mountaintop removal mining quizlet?

Mountaintop removal lowers the coal companies' overhead cost. It causes less jobs for coal mining, but has increased coal production dramatically.

What type of mining is mountaintop removal?

Mountaintop removal is a radical form of coal mining in which the tops of mountains are literally blasted off to access seams of coal. It takes place in the Appalachian Mountains, one of the oldest mountain ranges on Earth.

Why is mountaintop removal mining used?

Primarily, mountaintop removal is occurring in West Virginia, Kentucky, Virginia and Tennessee. Coal companies in Appalachia are increasingly using this method because it allows for almost complete recovery of coal seams while reducing the number of workers required to a fraction of what conventional methods require.

How does mountaintop coal removal cause environmental damage?

Contaminants from mountaintop removal even poison the drinking water of downstream communities. And this form of mining makes a twofold contribution to climate change: The forests destroyed in the process no longer store carbon, and the burning of the coal that's mined releases carbon into the atmosphere.

Which of the following techniques is used to take out the coal?

Answer: Contour strip mining and area strip mining are the two forms of strip mining, which is often used to extract coal and lignite. In contour strip mining, bulldozers or power shovels are deployed to take away huge amounts of ground material in terraced strips for extracting coal from a seam on a hill.

What are two major methods of obtaining coal from the ground compare the two methods?

Surface mining and deep underground mining are the two basic methods of mining. The choice of mining method depends primarily on depth, density, overburden, and thickness of the coal seam; seams relatively close to the surface, at depths less than approximately 55 m (180 ft), are usually surface mined.

How is coal refined and processed?

Refined coal is most commonly made by mixing proprietary additives to feedstock coal. These additives increase the production of mercury oxides, which can then be captured by using mercury emission reduction technologies such as flue gas desulfurization scrubbers and particulate matter control systems.