Top Posters
Since Sunday
w
5
a
3
j
2
a
2
t
2
u
2
r
2
j
2
j
2
l
2
d
2
y
2
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
Mercury has extensive sparsely-cratered plains. What is the significance of these plains compared to features on the Moon?

(a)   They are older than most of the lunar maria but younger than the lunar highlands.
(b)   They are lava-filled asteroid impact basins of the same age as the lunar maria, but have been weathered by Mercury’s intense sunlight so they no longer look dark.
(c)   They are the same age as the lunar highlands (about 4.6 billion years old), but are more sparsely cratered because Mercury is farther from the asteroid belt.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
Read 172 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
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 120 words.
1

Related Topics

doit_the_clown Author
wrote...

7 years ago
Thank you, thank you, thank you!
Evolution
wrote...

Yesterday
Helped a lot
smi3
wrote...

2 hours ago
Brilliant ツ
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1713 People Browsing
 127 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 772
  
 597
  
 261
Your Opinion
What's your favorite coffee beverage?
Votes: 303
Previous poll results: Which of the following is the best resource to supplement your studies: