89 -Rubbish, sewage or chemicals ---- .
A) are all part of the natural environment
B) can kill aquatic life when they are thrown into the water
C) are the main cause of warm water pollution
D) are by -products of hydroelectric plants
E) have, on occasions, proved to be beneficial to aquatic life
90 -The author argues that ---- .
A) there is nothing that can be done to correct thermal pollution
B) water pollution is a fact of life that we must learn to live with
C) tile world would be better off without hydroelectric power stations
D) fish are less affected by the second kind of pollution than by the first
E) both kinds of pollution are equally bad for the natural environment
The SAT is a a-hour test of both verbal and mathematical abilities which is used as part of the process
for evaluating applicants for admission to American universities. In 1995, the College Board, which
administers the SAT, re -centred the scoring scale for the test. It did so by re - establishing the
original average score of 500 on the 200 -800 scale. The scale had not been adjusted since 1941,
when it reflected the norm of some 10,000 students, frequently from public schools and applying to
the nation's most selective universities. Over the years the average score had shifted below 500 as a
larger number of students began taking the test, and verbal and maths scores had ceased to become
comparable. Now the scores represent a more diverse university-bound population of about 2 million
students.
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