Top Posters
Since Sunday
5
o
5
4
m
4
b
4
x
4
a
4
l
4
t
4
S
4
m
3
s
3
New Topic  
Tsync Tsync
wrote...
Posts: 3450
Rep: 8 0
8 years ago
What was detected on Halley's Comet and observed on Hale-Bopp that imply the possibility of life on Earth originating in space?
A) nucleotide bases
B) DNA
C) amino acids
D) ammonia
E) organic material
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
Read 193 times
3 Replies
Minoring in physics
Replies
Answer verified by a subject expert
RatatouilleRatatouille
wrote...
Top Poster
Posts: 3710
8 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

Tsync Author
wrote...
8 years ago
Exactly what I needed Smiling Face with Open Mouth
Minoring in physics
wrote...
8 years ago
Message back if you need anything
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  859 People Browsing
 101 Signed Up Today
Related Images
  
 812
  
 4186
  
 968
Your Opinion
Where do you get your textbooks?
Votes: 284