2 years ago

What evidence is there on the surface of the Earth of it's formation?

1 answer:

4 0

Answer: when the solar system settled into its current layout about 4.5 billion years ago, earth formed when gravity pulled swirling gas & dust in to become the third planet from the sun. like its fellow terrestrial planets, earth has a central core, a rocky mantle, & a solid crust.

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3 years ago

An element has an atomic number of 17. Calculate the mass of an atom of this element. (Avogadro constant is 6.022x10^23 atoms/mo

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