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symbo symbo
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Posts: 1970
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7 years ago
What mechanism is believed to produce flocculent spiral galaxies?
A)   Satellite galaxies plunging through the disk of the nuclear spiral galaxy
B)   Self-propagating star formation, where star formation occurs in bursts
C)   Shock waves from explosive star formation in the nuclear bulge
D)   Density waves in the interstellar medium
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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discovererdiscoverer
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7 years ago
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symbo Author
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7 years ago
Thanks
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Thanks
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2 hours ago
You make an excellent tutor!
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