Since Thomas Malthus's theory was first published, all of the following have happened EXCEPT:
A) Disasters such as wars and epidemics have killed tens of millions of people.
B) Vast areas of the planet that were scarcely utilized during Malthus's lifetime have been opened to productive agriculture.
C) Many food crops have been transplanted to new areas where they have thrived.
D) Mass starvation has occurred throughout the world, placing a strong control on population growth.
E) New genetically engineered plants are being introduced into the tropics.
Answer: D
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Intercept .914
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