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paperback. Condición: New. Paperback.Pub Date:2014-12-01 Pages:150 Language:Chinese Publisher:Zhejiang Education Publishing House When you were a teenager. many questions might pop up in your head: Why is the sky blue? How did the earth beneath our feet form? Where did the first people come from? Why did those giant dinosaurs go extinct? . . . These questions of yours are all questions of interest to science. In fact. science is born out of human curiosity and endless questioning of nature. After studying Science (Part. …