Question 14 Not yet answered Marked out of 1.00 P Flag question Natural carbon "sinks" - (processes that take CO2 from the atmosphere, such as the chemical weathering of rocks, the growth of vegetation, and the solution of atmospheric CO2 into the oceans) appear to have generally matched the production of CO2 until Select one: a. the end of the last ice age, approximately 16,000 years ago O b. the Little Ice Age, approximately 400 years ago O c. approximately 1900 O d. the Eocene, approximately 50 million years ago