3 years ago

When the solar system formed, planetesimals collided and merged to form

Biology

2 answers:

Stells [14]3 years ago

6 0

Answer:

(a)

Protoplanets are built up through the collisions of planetesimals over millions of years. The protoplanets orbit stably around the Sun for a while, but eventually they collide with each other. In about 100 million years, several terrestrial planets, like the ones found in our Solar System, are formed.

laiz [17]3 years ago

4 0

Answer:

A. protoplanets

Explanation:

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