Steel is used to make railway lines. Explain why?
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steel is used to make railway lines because steel is very flexible and has the ability to expand. steel is used because when it expands it does not change it shape, it only becomes bigger making sure it is safe to travel by train.
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2
Answer:
Steel is used to made railway lines because steel is very flexible and has the ability to expand. When it is expanded it doesn't change its shape.
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