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동영상강좌   CF로 배우는영어   생활속표현   영어뉴스   오디오*비디오 수업   오늘의 동영상   강사가 들려주는 금주의 명언 홈 > 커뮤니티 > 오디오/비디오 수업      Video // Beg I Pre-int // How Deep Is The Ocean? J** 2023-07-29 오전 3:23:44 352 How Deep Is The Ocean? or CLICK HERE to watch the video Vocabulary: 1.Bioluminiscence = the biochemical emission of light by living organisms such as fireflies and deep-sea fishes. 2.Vastness = very great extent or size; immensity. 3.Biosphere is defined as the region on, above, and below the Earth's surface where life exists. Questions: 1.Historically, how many ocean basins are there? And what are they part of in reality? 2.How many percent this giant ocean covers the Earth’s surface, and how many percent of Earth’s biosphere? 3.Who ventured the ocean depths, and into how any parts have they divided it? 4.What is the average depth of the ocean? 5.What is said to fit the Mariana Trench? 첨부파일 Not exist uploaded file. Video | INT | S. Korean adults average 6.68 points out of 10 on happiness index Video // Beg I Pre-int // What If All BEES Disappear?