Geography · Economic Geography

Consider the following statements regarding methods of coal extraction: Statement I: In certain contexts, underground coal mining is considered relatively less disruptive to the surrounding environment than large-scale surface mining operations. Statement II: Underground mining generally disturbs a smaller surface area, thereby reducing the immediate impact on surface vegetation and landforms. Statement III: This method allows the extraction of coal deposits located at greater depths, which are often inaccessible through surface mining techniques. Which one of the following is correct in respect of the above statements?