________ collided and merged, forming planets.

Protosuns
Protoplanets
Extrasolar planets
Planetesimals

bobpursley bobpursley answered
8 years ago

Image result for protoplanets

www.universetoday.com

Protoplanets are small celestial objects that are the size of a moon or a bit bigger. They are small planets, like an even smaller version of a dwarf planet. Astronomers believe that these objects form during the creation of a solar system.Aug 9, 2009

dylan dylan answered
7 years ago

he is right

Caitlyn Caitlyn answered
5 years ago

The answer is Plantesimals, Not Protoplanets

Explain Bot Explain Bot answered
7 months ago

Planetesimals

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