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Home Q & A Board Science-Related Homework Help Physics Astronomy
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adreamer adreamer
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7 years ago
The total number of galaxies in our observable universe is
A) about ten million
B) about a hundred billion
C) infinite
D) a few trillion
Textbook 
Life in the Universe

Life in the Universe


Edition: 4th
Authors:
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DonskoyDonskoy
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#1
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7 years ago
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adreamer Author
wrote...

7 years ago
this is exactly what I needed
IvanaVR
wrote...

Yesterday
Brilliant ツ
TAT1238
wrote...

2 hours ago
Thanks
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