Top Posters
Since Sunday
r
4
L
4
3
d
3
M
3
l
3
V
3
s
3
d
3
a
3
g
3
j
3
New Topic  
adreamer adreamer
wrote...
Posts: 891
Rep: 0 0
7 years ago
Why are radio waves probably the most efficient way to communicate between civilizations?
A) radio waves are easy to produce and are not affected much by interstellar matter in the galaxy
B) radio waves are the most penetrating of all electromagnetic radiations
C) all advanced civilizations are certain to use radio waves for communication
D) radio waves are the only kind of electromagnetic radiation that can carry information
Textbook 
Life in the Universe

Life in the Universe


Edition: 4th
Authors:
Read 98 times
1 Reply
Replies
Answer verified by a subject expert
DonskoyDonskoy
wrote...
Top Poster
Posts: 582
7 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

adreamer Author
wrote...

7 years ago
Good timing, thanks!
wrote...

Yesterday
Smart ... Thanks!
wrote...

2 hours ago
this is exactly what I needed
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  2054 People Browsing
Related Images
  
 4491
  
 267
  
 528