Surface mining. They use large trucks and shovels to extract the oil sands. Only 20% of all oil sands are close enough to the surface to be mined.
Oil reserves in Kuwait make up 8% of the oil reserves in the world. Kuwait is OPEC's third largest oil producer and claims to hold approximately 104 billion barrels (16.5×109 m3).
Answer: it is showing the republic of Texas. the main information the map is providing is that it's showing you places in republic of Texas and where the republic of Texas is mainly located which is by Louisiana and a part of Texas.
Explanation:
You can see the stars which are places that are located in the republic of Texas.
I believe the answer is British Columbia.
The most common method of extracting coal from mines are:
- The most common method of surface mining is open pit mining. This technique is most appropriate for areas with flat terrain, exposing coal while removing soil above the coal layer in batch system. When all the soil above the coal layer is removed, the underlying coal block is exposed and can then be drilled and blown. This process is performed successively, block by block.
- The contour mining method is the most commonly used surface mining technique in steep terrain areas. This method involves removing the soil above the charcoal layer in a standardized way, following the surroundings of a hill or a mountain, for example. This method requires great safety precautions, as it can cause large landslides and serious soil erosion problems. To solve these problems, a variety of methods have been developed over the years to establish limits for mining work.
- The method of mountain mine clearance involves the removal of mountains to expose coal shafts, eliminating sterile areas from mining sites. This practice combines the technology of mining of surroundings with the one of mining in the open sky.