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Brass is an alloy of
1 Nickel and copper
2 Zinc and copper
3 Nickel and zinc
4 Nickel and silver
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Deep blue color is imparted to glass by the presence of 1 Iron oxide 2 Cupric oxide 3 Nickel oxide 4 Cobalt oxide
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List and explain two instances of Correlation Science with Life Situation
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Atoms are composed of 1 Electrons only 2 Protons only 3 Electrons and protons 4 Electrons and nuclei
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the river tigris in which city
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