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Home Q & A Board Science-Related Homework Help Physics
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symbo symbo
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7 years ago
What mechanism is believed to produce grand-design spiral galaxies?
A)   Shock waves from explosive star formation in the nuclear bulge
B)   Density waves in the interstellar medium
C)   Satellite galaxies plunging through the disk of the nuclear spiral galaxy
D)   Self-propagating star formation, where star formation occurs in bursts
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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papachulopapachulo
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symbo Author
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#2
7 years ago
It's correct Smiling Face with Open Mouth
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