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25. What
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Many people still believe that natural resources will never be
used up. Actually, the world’s energy resources are limited.
No body knows exactly how much fuel is left. However, we
also should use them economically and try to find out
alternative sources of power. According to Professor Marvin
Burnham of the New England Institute of Technology, we
have to start conserving coal, oil and gas before it is too late;
and nuclear power is the only alternative.
However, many people do not approve of using nuclear
power because it is very dangerous. What would happen if
there were a serious nuclear accident? Radioactivity causes
cancer and may badly affect the future generations. The most
effective thing is that we should use natural resources as
economical as possible.