en 4
For the past 150 years there has been a major new input to the carbon cycle. What is it?
ed
out of
Select one:
O a. Increased animal farming has resulted in greater CO2 releases.
O
O
b. Changes in ocean currents have lead to the release of large quantities of CO2
c. Industrialization has resulted in the burning of fossil fuels such as oil and coal,
which releases CO2 into the atmosphere.
O
d. There are more humans releasing large quantities of CO2 as respiration.