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
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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
The author feels nervous when making big decisions because he______.
A. is born indecisive and irresolute
B. dislikes making definite decisions
C. lacks enough intelligence to do so
D. attempts to avoid the ensuing regrets
The proper title for the text should be ______.
A. Sex Ratio Seen to Vary by Latitude
B. Climate factors Affecting Sex Ratio
C. Statistics about Human Populations
D. Variations in Socioeconomic Status
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