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
토양학은 토양의 성질과 분포를 연구하는 학문입니다.Toyanghak-eun toyang-ui seongjil-gwa bunpo-reul yeongu-haneun hakmun-imnida.Pedology is the study of the properties and distribution of soils.