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1 vote
10. Living things are made mostly of these four

main elements:
(1) hydrogen, oxygen, nitrogen, and protein
(2) water, protein, carbohydrate, and fat
(3) carbon, hydrogen, oxygen, and nitrogen
(4) glucose, salt, mineral, and base

asked
User Sanju D
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1 Answer

7 votes
(3) carbon, hydrogen, oxygen, and nitrogen
answered
User GriffoGoes
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