Put the steps of formation of the early solar system in order from oldest to youngest. (Note: "First" refers to the oldest event and "Fifth" refers to the youngest.)
A) Rapid expansion of compact, dense mass to create matter and space.
B) Accretion of bodies to create protoplanets.
C) Formation and rotation of solar nebula.
D) Contraction of gases and start of nuclear fusion in the first stars.
E) Accretion of rocky debris creates planetesimals.
1) First
2) Second
3) Third
4) Fourth
5) Fifth
Answers: 1) A 2) D 3) C 4) E 5) B
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