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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2007
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Q)

About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and :


( A ) Sulphur and magnesium
( B ) Magnesium and sodium
( C ) Calcium and phosphorus
( D ) Phosphorus and sulphur

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