According to scientists, all of the bodies in the universe came from a rotating cloud of gases and dust about billion years ago.

O 3.5
O 2.5
O 4.5
O 1.2

It's either 3.5 or 1.2

There would be more evidence spread out through space to be noticed by scientists and it seems like a stretch to go as far back as 4 billion years ago.

(I mean really? That much before the DINOSOURS died? I don't think so)

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Hope this helps

Miri

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high