Researchers determine the population of phytoplankton in an area of the ocean is significantly decreased compared to the previous year. What can they conclude from this observation? (1 point)
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The plankton as a carbon sink will be greater than expected, but the plankton as a carbon source will be less than expected.
The plankton as a carbon sink will be less than expected, but the plankton as a carbon source will be greater than expected
The plankton as a carbon sink and as a carbon source in the area will be greater than expected.
The plankton as a carbon sink and as a carbon source in the area will be less than expected