Hellow guys, Welcome to my website, and you are watching EBS [과학탐구] 지구과학 - 원시 대기의 진화는 무엇인가요?. and this vIdeo is uploaded by EBSi at 2013-12-17T06:52:34-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
