× 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
Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
New Topic  
haileyrasmussen haileyrasmussen
wrote...
Go to Answer
Posts: 499
Rep: 0 0
6 years ago
The greatest human impact on the carbon cycle has been through ________.
 
  A) use of synthetic fertilizers
  B) increased respiration of the exponentially growing human population
  C) mining of limestone (calcium carbonate)
  D) combustion of fossil fuels
  E) depletion of aquifers
Read 70 times
1 Reply
Replies
Answer verified by a subject expert
yujenni16yujenni16
wrote...
#1
Posts: 396
Rep: 2 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

haileyrasmussen Author
wrote...

6 years ago
This helped my grade so much Perfect
aznzergs
wrote...

Yesterday
Thanks for your help!!
54321abs
wrote...

2 hours ago
Smart ... Thanks!
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1318 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 114
  
 744
  
 995
Your Opinion
Do you believe in global warming?
Votes: 370
Previous poll results: Does a gender wage gap exist in America?