Question

How our earth is formed?
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Answer 1

Answer:

As the Earth started to grow, about 4.56 billion years ago, the heavy iron sank to the center, and the lighter silicates rose to the surface. Heat generated from impacts of other bodies kept the early Earth molten. In fact, the planet's entire outer layer may have been liquid, an idea that came from studying the Moon.

Answer 2

earth was formed before 500 million years ago..

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