difference between metalled and unmetalled roads ?
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6
Metalled roads are made up of metal (pakka road) while unmettaled are of kacha.
Metalled roads are useful in rainy season than unmettaled one.
Metalled roads are useful in rainy season than unmettaled one.
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metalled roads are ductile,mealiability, are sonorous , lutrous and conduct heat and electricity and shiny and have positive charge
But non metalled are opposite to it
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