Matemáticas, pregunta formulada por mingarosa866, hace 8 meses

The environment un the Pre-Cambrian ​

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Contestado por Kristoph
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The climate of the late Precambrian time, the Pro-terozoic eon (2.5 billion years ago to 543 million years ago) was typically cold with glaciations spreading over much of the earth. One of the most important events of the Proterozoic was the gathering of oxygen in the Earth's atmosphere

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