23. All of the statements are true EXCEPT:
A) The number of starving people has decreased in the world in recent years.
B) Environmentalists take a pessimistic view of the world for a number of reasons.
C) It would be best to attempt to slow down economic growth.
D) Some pollution problems have been correctly linked to industrialisation.
24. What subject is the second part of the text mainly concerned with?
A) the problems of pollution and extinction B) solutions to the environmental issues
C) the reasons for negative changes of the environment D) positive approaches to environmental problems
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