here for the question, i thought option C was wrong, because the passage mentions the growth would not “significantly” lower the atmospheric c02. Where am i wrong here
So here’s some clue I got from the passage you shared. Key words: While, …does not (this combo is a frequent signal of a rebuttal of the previously mentioned sentence.) If you keep reading, focus on the last sentence, you’d see Martin was wrong cuz by adding iron to iron-lack regions cannot reduce the carbon dioxide in atmosphere as he predicted since carbon dioxide would return to the atmosphere after phytoplankton was consumed by predators.
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