Exam (elaborations)
Study of Earth Science Exam Questions and Answers
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Study of Earth Science Exam Questions and Answers .6 Billion years old (4,600,000,000) - Answer-How old is the earth? Nebula - Answer-A large cloud of gas and dust in interstellar space; a region in space where stars are born. Protostar - Answer-Is the shrinking, spinning region begins to ...
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