In the September 11 terrorist attacks on America
a. one thousand people died when New York skyscrapers were hit.
b. heroic passengers forced one of the hijacked planes to crash in a field rather than hit targeted buildings.
c. questions about Bush's legitimacy as president further escalated.
d. Americans were angered by the president's initial response.
e. it took months before the group responsible for the attacks was identified.
Question 2
Major advances in genetic and stem-cell research led to all the following except
a. the cloning of human beings.
b. the prospect of major new medical therapies.
c. the prospect of large profits for bioengineering companies.
d. concern about the ethical implications of cloning and the destruction of embryos.
e. the development of new high-yield crops.
Distribution of glaciers in North America (a) in the late twentieth century, and (b) 18,000 years ag
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