Carbon dioxide. We read about the excess of carbon dioxide in our atmosphere and how it may be influencing our climate. But the oceans currently absorb about a third of human-created CO2 emissions, about 22 million tons a day. The oceans have always been a CO2 storehouse as the illustration shows. But this huge influx of CO2 is changing the oceans. What is one change that would expect to happen?
Responses
A An excess of CO2 pushes out the dissolved oxygen, limiting animal life in the oceans.An excess of CO 2 pushes out the dissolved oxygen, limiting animal life in the oceans.
B Adding CO2 creates carbonic acid, lowering the ocean pH.Adding CO 2 creates carbonic acid, lowering the ocean pH.
C The increased CO2 in the oceans is contributing to the warming of the oceans on Earth.The increased CO 2 in the oceans is contributing to the warming of the oceans on Earth.
D Too much CO2 can change the ocean currents.