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
지문학은 지구의 물리적 특성을 연구하는 학문입니다.jimunhak-eun jigu-ui mulrijeok teukseong-eul yeonguhaneun hakmun-imnida.Physical geography is the study that researches the physical characteristics of the Earth.