A miner is a person who works in the extraction of valuable minerals or other geological materials from the earth. This work often takes place in mines, which can be underground or on the surface. Miners may extract resources like coal, gold, silver, or copper, and they use various tools and machinery to assist in the process. Mining can be a dangerous job due to potential hazards such as cave-ins, exposure to harmful gases, and equipment accidents. Miners must follow safety regulations and often undergo training to protect themselves while working in challenging environments.