Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
조산운동은 지구의 지각이 변형되는 과정을 설명합니다.josanundongeun jigui jigagi byeonhyeongdoeneun gwajeongeul seolmyeonghamnida.Orogeny explains the process of deformation of the Earth's crust.