Top Posters
Since Sunday
w
3
w
3
e
3
3
r
3
g
2
2
b
2
M
2
V
2
f
2
c
2
Home Q & A Board Science-Related Homework Help Physics
New Topic  
Tsync Tsync
wrote...
Go to Answer
Posts: 3450
Rep: 8 0
8 years ago
The rate of cratering in the lunar highlands shows us that:
A) the largest impacts are the youngest, such as Copernicus and Tycho.
B) they must be younger than the older, darker mare.
C) they range from 4.6-4.4 billion years old, on average.
D) the oldest rocks are at least as old as the mare, but some craters are much younger.
E) most of the asteroids must have hit the Moon, not the Earth.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
Read 283 times
3 Replies
Minoring in physics
Replies
Answer verified by a subject expert
RatatouilleRatatouille
wrote...
#1
Top Poster
Posts: 3710
Rep: 56 0
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...
#2
8 years ago
Wonderful, thanks for your time and effort
Minoring in physics
wrote...
#3
8 years ago
Cool Smiling Face with Open Mouth
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1113 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 640
  
 1093
  
 876
Your Opinion
Which 'study break' activity do you find most distracting?
Votes: 824
Previous poll results: Which is the best fuel for late night cramming?