MCQOPTIONS
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| 1. |
What is the result of deep-sea organisms playing a key role in the functioning of the biological carbon pump? |
| A. | Phytoplankton, at the bottom of the marine food chain, use CO2 and transform it into organic matter, part of which sinks to the ocean floor. |
| B. | Earth receives half of its oxygen due to the activities of these organisms |
| C. | The level of plastic pollution increases in the water bodies |
| D. | These organisms die from shock and severe trauma |
| E. | None of these |
| Answer» C. The level of plastic pollution increases in the water bodies | |