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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
Of the planetary systems that may exist in our galaxy, what fraction may contain a habitable planet?
A) about a tenth
B) about half
C) only 1 in 50
D) less than 1 in 100
E) almost all
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
Read 386 times
3 Replies
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
Exactly what I needed Smiling Face with Open Mouth
Minoring in physics
wrote...
#3
8 years ago
Happy to help Slight Smile
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