Multi-Source Reasoning | Increasing concentrations of carbon dioxide (CO2) in the atmosphere

GMATNinja ,KarishmaB

In Question-1, why is statement 1 "Decreased iron absorption by phytoplankton will contribute to increased extinctions of sea life."Projected?

The relevant portion from passage is" Research suggests that a 0.3 decline in pH reduces phytoplankton iron consumption by about 15 percent, slowing photosynthesis and impacting growth and reproduction. Comparable changes in the past correlated with massive extinctions of sealife."

The passage says that comparable changes in the past "CORRELATED" with massive extinctions of sea life. This does not mean that these extinctions were necessarily caused by reduced phytoplankton iron consumption. What's more, even if it happened in the past, is it really reasonable to project that this "correlation" will happen again in the future?­ Maybe all the species which could get extinct because of these changes, already became extinct.
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Statistics : Posted by PReciSioN • on 13 Mar 2024, 03:45 • Replies 6 • Views 1225

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