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Quarry is an :

  • A.Open coal mine
  • B.Underground coal mine
  • C.Open pit for rock mining
  • D.Explosive mine

Answer: C

A quarry is an open pit for rock mining.

Quarrying extracts building stone, limestone, granite, sand or gravel from an open excavation at the surface. It is a type of surface mining, but the word is used for rock and stone, not coal.

An open coal mine is an opencast mine, and an underground coal mine works coal seams through shafts and galleries. Explosives may be used in quarrying, but 'explosive mine' describes a weapon, not a quarry.

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