. . . . "火山是地球表面的自然地质现象,它们是由地下岩浆上升到地表并释放岩浆,热气体和火山灰形成的。火山通常具有特定的地理特征和地质活动,对地壳和生态系统的演化具有重要意义。" . . . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCLLQT4MIIyn3qzWwbpWlfkpCJXfXbwhi108LZvIHeUQ6eFs1w9LA6a3sPQJCJEk3fFsjRP+NkCFzF4TcFfPNAI5RhSZu1RfRY+TEXAoxmwNPmcaQOLNnssxMwK2rJF0qR08JthVIHL81bNg8/zSV50Zv24laDFzgMkOblaxXLRVQIDAQAB" . "Rgpuai+1yC+iR4t7tYEubWCxIsnbMa0y2OJICfh5+XV+Ujc+2KBwBfeBRzScWV6vExUgK+obj5YCOBTMISGKg9q/V3s9AAcvvctF9LjXEzKnry7zIaYZEBmNLmaaKbVS3bEyMiDb7xbFYDd5vtOjG0fNSRrAY6P9lxOLRxhJmZo=" . . "2023-10-03T12:38:16.113Z"^^ . . . . "Comment on: Volcano" . . . . . .