Reading passages

87 -The author believes that ---- .
A) we can easily find the chemicals used by Houdini 
anywhere in the world 
B) the people in the West no longer like magical 
performances 
C) Westerners are more interested in their safety 
now than, In the past 
D) Houdini took the secrets of his craft to India 
before he died 
E) chemicals needed by magicians should be freely 
available to everyone 
There are two kinds of water pollution. The first is 
when rubbish, sewage or chemicals are thrown into 
the water. This waste upsets the natural environment 
and can prove dangerous or fatal to fish and other life 
in the water. The second type of pollution is thermal, 
or warm water pollution. This is most commonly 
caused by hydroelectric power plants. These take 
water from a lake or river, convert it into steam for 
running the plant's turbines, change the steam back 
into water, then return the water to the original lake 
or river. Though this water is no dirtier than when it 
was taken out, it is often five to ten degrees above its 
original temperature. This causes a change in the 
environment which can be as dangerous to, aquatic 
life as waste 'pollution. 
88 -It is stated In the passage that ---- .
A) thermal pollution is more dangerous than 
pollution from rubbish or chemicals 
B) warm water pollution Is as harmful as thermal 
pollution 
C) hydroelectric plants put dirty water back into the 
environment 
D) thermal pollution occurs when the temperature of 
a river or lake is raised 
E) aquatic life is merely disturbed by thermal 
pollution 
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