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atomic number 15

n.
1.a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells

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  • Idiom of the Day

    burst onto the scene
    to appear suddenly in some location
    The young singer burst onto the scene when she was a teenager.



    1.
    She sang (a) / very well (b) / isn't it ? (c) /No error (d)

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