Read the passage and then answer the questions

Read the passage and then answer the questions (1pt)

Many people still believe that natural resources will never be used up. Actually, the world‘s  energy resources are limited. Nobody knows exactly how much fuel is left. However, we should use  energy resources 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 important thing is that we should use natural resources as  economically as possible.

Questions:

1. Do we know exactly how much fuel is left?

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2. According to Professor Marvin Burnham, what do we have to do?

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3. Why do many people disapprove of using nuclear power?

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4. What does radioactivity cause?

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5. List some energy using in Viet Nam 

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