지각구성원소-산소46.6%,규소27.7%,알루미늄8.1%,철5.0%,칼슘3.6%,나트륨2.8%,칼륨2.6%,마그네슘2.1%,기타1.5%입니다^^즐거운하루되세요~
[무물보AI] 답변 로딩중...
당신은 어느 그룹입니까?