— Over thousands of years, radioactive uranium decays and turns into thorium.
discovery in 1994 and the unique nature of its art compared to Lascaux. Key Information for Answers: Access Blocked : The entrance to the Chauvet Cave was sealed by a rock slide thousands of years ago, preserving it perfectly. Subject Matter : Unlike other sites, Chauvet features many predatory animals (lions, bears, rhinos) rather than just hunted animals. : The paintings show sophisticated techniques like perspective paleolithic cave art ielts reading answers