Using dead diatoms to "pump" CO₂ to the seafloor is feasible only if dead diatoms sink quickly.Consequently,application of mineral fertilizers,such as iron,should be most effective at times when diatom valves A)are thickest,and laminarin is being produced rather than oil. B)are thickest,and oil is being produced rather than laminarin. C)are thinnest,and laminarin is being produced rather than oil. D)are thinnest,and oil is being produced rather than laminarin.

Question

Quizplus · Accepted Answer

Dead diatoms sink quickly when their valves are thick, which occurs when they are in the process of producing laminarin. Therefore, mineral fertilizers such as iron would be most effective at times when diatom valves are thickest and laminarin is being produced rather than oil.

Using Dead Diatoms to "Pump" CO2 to the Seafloor Is

Using Dead Diatoms to "Pump" CO₂ to the Seafloor Is