why is the account of the past of jharon caves told by graceson known as prehistory
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Answer:
Tharon Cave was used as a shelter for thousands of years. Excavations inside the cave produced items related to the Hobinian culture of North Vietnam. The cave is of great archaeological and historical significance and was developed for tourism. The road to Tharon was improved and a three kilometer long road to the cave entrance built. A plate at the cave entrance shows a map of the 655m long cave system. And the most important fact for Indian cave visitors: five exits allow a good flow of air through the cave. Idians are always in the fear to suffocate in a cave, so many show caves have been equipped with obsolete ventilation systems. Actually they are not only unnecessary, the are useless, expensive, energy consuming and a threat to the cave.