The lettered descriptions below list the various stages of star and planet forma

Question

The lettered descriptions below list the various stages of star and planet formation. Place in the correct order in your post. If any stages are ongoing or occur simultaneously, indicate that by adding an asterisk next to the letter.

1. Earliest ______ ______ ______ ______ ______ ______ ______ ______ Latest

A: Cloud of gas rotates faster and faster as it collapses due to the conservation of angular momentum.

B: Motions push smaller grains of material back and forth past larger grains; smaller grains stick to larger grains.

C: Cloud of interstellar gas starts to collapse under the force of its own self-gravity.

D: Gravitational potential energy of collapsing gas cloud is converted into heat and radiative energy.

E: Material makes its final inward plunge, landing on a thin, rotating accretion disk.

F: Planetesimals continue to accrete material until they become large enough to become planets.

G: Planetesimals form that are massive enough to have gravity that begins to attract nearby bodies.

H: Inner parts of the flattening cloud begin to fall freely inward, raining down on growing objects at the center.

Explanation / Answer

1. Answer: STAGES OF STAR AND PLANET FORMATION (Earliest to Latest order)

C. Cloud of interstellar gas starts to collapse under the force of its own self-gravity.

A.Cloud of gas rotates faster and faster as it collapses due to the conservation of angular momentum.

D.Gravitational potential energy of collapsing gas cloud is converted into heat and radiative energy.

E. Material makes its final inward plunge, landing on a thin, rotating accretion disk.

H. Inner parts of the flattening cloud begin to fall freely inward, raining down on growing objects at the center.

G. Planetesimals form that are massive enough to have gravity that begins to attract nearby bodies.

B. Motions push smaller grains of material back and forth past larger grains; smaller grains stick to larger grains.

F. Planetesimals continue to accrete material until they become large enough to become planets.

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