TOEFL Independent Sample Answer

Test materials of independent writing: Some argue that we should use cleaner energy sources to protect the environment, while others believe traditional energy sources like coal and oil are better because they are less expensive. What is your opinion and why?

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 TOEFL Independent Sample Answer - #6049
Question:
Some argue that we should use cleaner energy sources to protect the environment, while others believe traditional energy sources like coal and oil are better because they are less expensive. What is your opinion and why?
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