Top Posters
Since Sunday
5
k
4
c
4
4
M
3
t
3
i
3
B
3
k
3
m
3
c
3
o
3
Home Q & A Board Science-Related Homework Help Physics
New Topic  
staedtler staedtler
wrote...
Go to Answer
Posts: 2716
Rep: 0 0
7 years ago
At what time and from what source did the majority of the craters on the Moon form?

(a)   During less than the first billion years of the Moon=s life, from debris left over from the formation of the solar system.
(b)   Increasing to a maximum impact rate 2.5 billion years ago as collisions between asteroids produced more and more debris fragments, then dropping off as large asteroids became rare.
(c)   More-or-less uniformly over the life of the Moon due to a roughly constant supply of rocky and icy debris from the outer solar system.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
Read 91 times
2 Replies
Replies
Answer verified by a subject expert
discovererdiscoverer
wrote...
#1
Top Poster
Posts: 1374
Rep: 30 0
7 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
This verified answer contains over 130 words.
1

Related Topics

staedtler Author
wrote...
#2
7 years ago
On behalf of my study group and I, thank you
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  925 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 877
  
 380
  
 2713
Your Opinion
Who will win the 2024 president election?
Votes: 8
Closes: November 4
Previous poll results: Which industry do you think artificial intelligence (AI) will impact the most?