Q:Answer the following question given this paragraph: Underground mining is used to recover ores that are deeper into Earth's surface. Miners blast and tunnel into rock to gain access to the ores. An underground ore deposit can be approached from above, below, or sideways. The direction depends on the placement of the ore body, its depth, the concentration of ore, and the strength of the surrounding rock. An example of an underground mine can be seen below ( Figure below ). Q: What type of mining is used to recover ores that are deeper into earth's surface? Choices: - deep mining - explosive mining - underwater mining - underground A:
A:
underground