Maharashtra BoardEnglish MediumSTD 6ScienceSimple Machines1 Mark
Question
Machines have to be maintained.
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Answer
Parts of machines rub against one another when they are used.
Soiled, dusty parts create more friction. Some parts are affected by the weather, rust and corrosion.
Machines get damaged or become useless due to such wear and tear. Hence to avoid this, machines should be maintained properly to keep them in good working condition.
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