Mark the letter A, B, C, D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

It is widely known that the excessive use of pesticides is producing a detrimental effect on the local groundwater.

A. useless 

B. harmless 

C. damaging 

D. fundamental

Mark the letter A, B, C, D on your answer sheet to indicate the word that differs from the rest in the position of the main stress

A. decree

B. atmosphere

C. discard

D. disposal