BI-1944
Carbon cycle and carbon sinks
Biology · Secondary 4 · Medium · Carbon cycle and carbon sinks
A factory burns large amounts of coal to generate electricity. Which statement best explains how this activity increases carbon in the atmosphere and oceans?
- Coal burning removes carbon dioxide from the air, so oceans release carbon to replace it.
- Coal burning releases carbon dioxide, which increases in air and then dissolves into the oceans.
- Coal burning releases oxygen, which reacts with ocean water to form carbon.
- Coal burning adds carbon directly to deep ocean sediments without entering the air.
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