E7 U10 Choose the correct answer

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Nuclear energy is ____, but it is dangerous. A. renewable B. non-renewable C. natural resource D. fossil fuel

A. renewable

Fossil fuels are very common in our society but they ____ the environment. - A. waste B. pollute C. renew D. provide

B. pollute

All the houses in our village will be ____ by solar energy. A. frozen B. widened C. heated D. heightened

C. heated

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