× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
j
3
s
3
j
2
J
2
e
2
n
2
t
2
d
2
b
2
t
2
J
2
b
2
New Topic  
Ag566 Ag566
wrote...
Posts: 541
Rep: 0 0
6 years ago
Carbon is introduced into the atmosphere by all
  EXCEPT which of the following means?
  a. respiration
  b. volcanic eruptions
  c. burning of fossil fuels
  d. wind erosion of rocks
  e. combustion of wood

Question 2

Most of the annual cycling of carbon takes place
  between
  a. groundwater and surface freshwater systems.
  b. the atmosphere and the land.
  c. the land and surface freshwater systems.
  d. the oceans and the atmosphere.
  e. the oceans and the land.
Read 43 times
2 Replies
Replies
Answer verified by a subject expert
nooxnoox
wrote...
Posts: 343
Rep: 1 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

Ag566 Author
wrote...
6 years ago
Thank you so much for providing this
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  891 People Browsing
Related Images
  
 605
  
 247
  
 379
Your Opinion
Do you believe in global warming?
Votes: 488