Q: The teacher-subjects were told that they were testing whether
A a 450-volt shock was dangerous.
B punishment helps learning.
C the pupils were honest.
D they were suited to teaching.
What aspect of scientific research does the writer express concern about in paragraph 4?
A. the need to produce results
B.the lack of financial support
C.the selection of areas to research
D.the desire to solve every research problem
The writer quotes from the Worldwide Fund for Nature to illustrate how
A.influential the mass media can be.
B.effective environmental groups can be.
C.the mass media can help groups raise funds.
D.environmental groups can exaggerate their claims.
What does the writer say about America's waste problem?
A It will increase in line with population growth.
B It is not as important as we have been led to believe.
C It has been reduced through public awareness of the issues.
D It is only significant in certain areas of the country.