What phenomenon contributed to the formation of earth's layers?

1 Answer
Sep 21, 2017

Answer:

You just about answered your own question.

Explanation:

You literally stated a part of the answer in your question, layers are created through sediment and dust, all the heaviest materials and metals went straight to the core of the planet but the lighter stuff that piled up later needed up on top, but through heat and pressure the core has been heated up so all of this material is eventually recycled.