By saying these figures are conservative (Line 1, paragraph 3), Dr Worm means thatA. fishing technology has improved rapidly B. then catch-sizes are actually smaller then recorded C. the marine biomass has suffered a greater loss D. the data collected so far are out of date.
By saying these figures are conservative (Line 1, paragraph 3), Dr Worm means that
A. fishing technology has improved rapidly B. then catch-sizes are actually smaller then recorded C. the marine biomass has suffered a greater loss D. the data collected so far are out of date.
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