Icebergs have long gripped the popular imagination, whether as relatively run-of-the

 A)”The NSF coordinates all U.S. research conducted on the southernmost continent.”   B)”The NSF research was conducted by scientists from the Monterey Bay Aquarium Research Institute.”   C)”NSF officials agree that the new research may open a new and productive field for ecosystem research.”   D)”…scientists estimate that icebergs are raising the biological productivity of nearly 40 percent of the Weddell Sea.”

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