IELTSDATA READING PASSAGE 64-CAVES

IELTSDATA READING PASSAGE 64-CAVES

IELTSDATA READING PASSAGE 64-CAVES. 1. Caves are natural underground spaces commonly those into which man can enter. There are three major types: the most widespread and extensive are those developed in soluble rocks, usually limestone or marble, by underground movement of water; on the coast are those formed in cliffs generally by the concentrated pounding … Read more