Which activity involves controlled explosions and drilling within mining operations?

The activity that involves controlled explosions and drilling within mining operations is accurately identified as explosives and drilling. In mining, explosives are used for breaking rock to extract minerals efficiently. This process requires precise planning and execution to ensure safety and effectiveness, as the blasting allows for the fragmentation of rock, making it easier to transport and process the mined materials.

Drilling accompanies the use of explosives, as holes must be drilled into the rock to place the explosives effectively. This combination of drilling and blasting is essential for many surface mining operations to access deposits that would otherwise be inaccessible. Proper training and understanding of the explosives used, as well as compliance with safety regulations, are critical in these activities to prevent accidents and ensure the overall success of mining operations.