× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
New Topic  
Johnni Johnni
wrote...
Posts: 761
Rep: 0 0
6 years ago
Early Earth was hot because ________.
 
  A) gravitational collapse generates heat
  B) a combination of collisions and radioactive decay produced heat
  C) there was still heat from the original big bang
  D) the moon's formation from an giant impact produced heat
  E) the Sun was much larger and heated the early planet
Read 47 times
1 Reply

Related Topics

Replies
wrote...
6 years ago
B
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1393 People Browsing
Related Images
  
 226
  
 373
  
 142
Your Opinion
Which is the best fuel for late night cramming?
Votes: 145

Previous poll results: What's your favorite coffee beverage?