d) has been carrying on noticeably since 1950 12. It has been anticipated that, by the middle of the next century
a) the population growth rate in less developed countries will be much higher than that in
previous years.
b) kinds of measures will have been taken to encourage population growth
c) the world population will not be stabilized at around 10 to 15 billion.
d) the rate of increase will still be increasing
Most substances, either artificial or natural, can cause harm to man or the environment. Some
of these reach the environment in waste streams; however emission limits and environmental
quality standards can, in some instances, reduce the amounts released. However, some other
matters cannot be controlled in this way because they are released, not in industrial waste
streams, but through the use or disposal products which contain them. In many cases these
substances pose little or no threat if the product containing them is used and disposed of
properly. The accurate wav to deal with them is through controls over their supply, use and
disposal
13. In accordance with the passage, the threat of some certain substances to the
environment............. .
a) is for less than that to man
b) could be reduced by enforcing emission limits and environmental controls c) has been unnecessarily over emphasized
d) has to date been completely ignored
14. The author expresses that the danger posed to man by some substances ............. .
a) is even greater than generally admitted
b) is unrelated to environmental pollution
72
c) continues to grow despite constant control of disposal systems
d) arises from their misuse and wrong disposal 15. The passage is related to the question of ............. .
