Table of Contents
What are advantages and 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.
What are 3 advantages of mining?
These benefits include low-cost, reliable electricity and the materials necessary to build our homes, schools, hospitals, roads, highways, bridges and airports.
What are 2 advantages of subsurface mining?
Advantages : Safer than surface mining, faster than 60% of other mining in the U.S, less disruptive to the environment, leads to more minerals.
Why is surface mining cheaper than subsurface mining?
Discuss one reason why surface coal mining is generally less expensive than subsurface mining. Surface mining requires fewer workers who are paid less than the subsurface miners.
Why is subsurface mining better than surface mining?
Surface mining is often preferred to subsurface mining by companies in the industry because it is less expensive, there are fewer complications with electricity and water, and it is safer. However, surface mining can be more environmentally-damaging than subsurface mining.
What are some advantages of subsurface mining compared to surface mining quizlet?
Subsurface mining offers more employment opportunities than surface mining would for the same volume of coal. 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.
What is surface mining used for?
Surface mining refers to the removal of the terrain surface to access minerals underneath. In particular, surface mining is used to retrieve sand, gravel, stones, coal, iron and other metals. There are five recognized types of surface mining, each with specific variations depending on the minerals being extracted.
How does surface mining affect streams?
However, even with current regulations, surface mining can affect fish and aquatic resources through erosion and sedimentation, dewatering of wetlands, diverting and channelizing streams, and contaminating surface water and aquifers with toxic chemicals.