Top Posters
Since Sunday
d
4
N
3
3
R
3
k
3
o
3
Z
3
j
3
s
3
d
3
J
3
1
3
Home Q & A Board Science-Related Homework Help Physics
New Topic  
doit_the_clown doit_the_clown
wrote...
Go to Answer
Posts: 1408
Rep: 0 0
7 years ago
All but one of the following conditions characterize a pre–main-sequence star in its final stages.  Which one is the exception?
A)   It is fusing hydrogen into helium in its core.
B)   It is no longer contracting.
C)   The gas and dust around the pre–main-sequence star have largely dissipated.
D)   Helium burning has begun as the principal energy generating mechanism in the core.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
Read 86 times
1 Reply
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
Replies
Answer verified by a subject expert
papachulopapachulo
wrote...
#1
Top Poster
Posts: 1302
Rep: 29 0
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

doit_the_clown Author
wrote...

7 years ago
Brilliant ツ
halyna
wrote...

Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
jbarnett14
wrote...

2 hours ago
Thanks
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1484 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 251
  
 704
  
 310
Your Opinion
Previous poll results: What's your favorite coffee beverage?