so the sun is enormously important to us. for us, it is the most important star in the universe. but where did the sun come from? How did it begin? that is the hardest quistion. and it is like another difficult quetion how did the earth and all the plants, begin? where did they all come from? It has taken scientists a long time to find the answeres to these questions.
Sayfa 14 - oxford
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35 görüntüleme
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