मानव शरीर किन किन चीजों से मिलकर बना है और इसका आधार क्या है तथा इसकी संरचना का पता लगाएं एवं मानव शरीर का चित्र बनाकर शरीर के अंगों के नाम लिखें?
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Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture. Rust consists of hydrous iron(III) oxides and iron(III) oxide-hydroxide, and is typically associated with the corrosion of refined iron.
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