ACCORDING TO THE PASSAGE, MARINE LIFE ON THE ISLANDS IS THREATENE...

23.

According to the passage, marine life on the islands is threatened by __________.

A.

alien animals

B.

scientific research

C.

tourism

D.

illegal fishing

Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is

OPPOSITE in meaning to the underlined part in each of the following questions.