What can be inferred from Paragraph 6 about a society with a high level of technological advancement？
A. Its primary groups are concerned mainly with acquiring material goods.
B. It is less common for people to commit to primary or secondary groups.
C. It allows its citizens to join more primary groups than those of other societies.
D. Its people form. secondary groups more often than primary groups.
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Why does the author mention marine tourism？
A. To show how people's lives may be put in danger by the algae's growth.
B. To explain how human activities have encouraged the spread of Caulerpa taxifolia.
C. To contrast the impact on the tourism to what has happened in the commercial fishing industry.
D. To give an example of the effects that changed ecosystems have on humans.
The word feasible in the passage is closest in meaning to
A. practical.
B. comprehensive.
C. firm.
D. routine.
According to Paragraph 3, how was the price of a film determined？
A. By the physical proportions of the film itself.
By the popularity of the film's content.
C. By the success of the film in the past.
D. By the distance exhibitors had to travel to buy it.
The word detrimental in the passage is closest in meaning to
A. harmful.
B. recent.
C. diverse.
D. worrying.
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