The top climate change economist mentioned in the third paragraph______.
A. challenges Lomborg with his optimistic prediction about future
B. is inclined to disagree with Lomborg"s view of global warming
C. is as skeptical of the threat of global warming as Lomborg
D. confirms his agreement with Lomborg on global warming
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Lomborg argues that global warming______.
A. may be something beneficial to human beings
B. should be addressed by environmental scientists
C. has ignited a heated controversy among scientists
D. is important both statistically and environmentally
Duty will never be eliminated since______.
A. it is a primal necessity to human survival
B. everyone is born with some natural traits
C. it is a mental attribute possessed at birth
D. society will become morally degenerate
The sex ratio at birth______.
A. rests to some extent with the distance to equator
B. is mainly determined by abortion or infanticide
C. correlates only with cultural or economic factors
D. related to every single cultural or political variable
The author asserts that the correlation of sex ratio and latitude is ______.
A. affected by variations in socioeconomic status
B. invulnerable to abortion or killing of baby girls
C. vulnerable to sex selection by parents before birth
D. to be verified with evidence of more years of data
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