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Home Q & A Board Science-Related Homework Help Physics
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Tsync Tsync
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8 years ago
Which sequence of formation by age is correct, oldest to youngest?
A) dark nebulae, planetary nebulae, emission nebulae
B) spiral arms, bulge, halo
C) Population I stars, Population II stars, Population III stars
D) globular clusters, emission nebulae, open clusters
E) halo, spiral arms, globular clusters
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
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Minoring in physics
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RatatouilleRatatouille
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8 years ago
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Tsync Author
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#2
8 years ago
Wonderful, thanks for your time and effort
Minoring in physics
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#3
8 years ago
Slight Smile
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