Give two examples from our daily life, where expansion of metals is used.
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potassium and magnesium
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4
first
we can see everywhere that our mother and sister wear earnings in ears and here we can see that expansion of metal is used
second
we can see our mom wears anklet
we can see everywhere that our mother and sister wear earnings in ears and here we can see that expansion of metal is used
second
we can see our mom wears anklet
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