Top Posters
Since Sunday
w
3
w
3
e
3
3
r
3
b
2
M
2
V
2
f
2
c
2
c
2
K
2
Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
New Topic  
bio_man bio_man
wrote...
Go to Answer
Administrator
Educator
Posts: 33338
Rep: 3443 15
9 years ago
The major source of free oxygen in the atmosphere is from ________.
A) molten rock
B) water
C) green plants
D) silicate minerals
E) glaciers
Read 393 times
1 Reply
Replies
Answer accepted by topic starter
EmBoyEmBoy
wrote...
#1
Valued Member
Top Poster
Posts: 600
Rep: 47 0
9 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  766 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 1312
  
 431
  
 673
Your Opinion
What's your favorite funny biology word?
Votes: 401
Previous poll results: Does a gender wage gap exist in America?