A.historical anomaly.
B.global catastrophe.
C.scientific curiosity.
D.political problem.
A.Lines 37-41 (“Species…ago”)
B.Lines 42-45 (“A program…woes”)
C.Lines 53-56 (“Against…irresponsible”)
D.Lines 65-67 (“Such…grave”)
A.Passage 2 attacks a political decision that Passage 1 strongly advocates.
B.Passage 2 urges caution regarding a technology that Passage 1 describes in favorable terms.
C.Passage 2 expands on the results of a research study mentioned in Passage 1.
D.Passage 2 considers practical applications that could arise from a theory being discussed in Passage 1.
A.most engrossing.
B.most challenging.
C.most extensive.
D.most fundamental.