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learn the history of earths formation from 4.5 billion years ago and the importance of its position and water

the creation of earth, then position in solar system, then liquid water ........ 

history of the earth 101 national geographic

history-of-the-earth-101-national-geographic

Let's do English ESL deep listening: focus on meaning. learn the history of earths formation from 4.5 billion years ago and the importance of its position an…