Hellow guys, Welcome to my website, and you are watching [지구과학1 기본 개념 수업] 10강. 화성암의 분류. and this vIdeo is uploaded by 원이쌤 at 2021-04-26T08:19:04-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
