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Matter in Our Surroundings
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07/11/2021 4:40 pm
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Explain why:
(a) Air is used to inflate tyres.
(b) Steel is used to make railway lines.
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07/11/2021 4:41 pm
(a) When air is blown the particles in air pushes the tyre walls from inside and exerts a pressure on them.
(b) Steel is used to make railway lines because it is a rigid object having a definite shape and volume and strong also.