Read the passage. Then, select the antonym of the word in bold.
Following a catastrophic oil spill in the Gulf of Mexico in 2010, hundreds of dead dolphins
washed up on the beaches of Mississippi, Louisiana, and Alabama. A cursory inspection
of the devastation convinced many residents that it was caused by the spill, but the
National Oceanic and Atmospheric Administration waited for a careful analysis of the
dolphins' remains to be carried out before drawing their conclusions. Autopsies finally
revealed low adrenal hormone levels, which are associated with oil contamination in
mammals. what’s the answer
