Biology, 12.01.2021 21:40 mary9590

Scientists discovered that stars in the universe are mostly composed of which elements? A. hydrogen and helium
B. hydrogen and oxygen
C. oxygen and nitrogen
D. helium and nitrogen

Answers: 3

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More questions: Biology Another questions

Scientists discovered that stars in the universe are mostly composed of which elements? A. hydrogen and helium B. hydrogen and oxygen C. oxygen and nitrogen D. helium and nitrogen

Answers

Another question on Biology

Scientists discovered that stars in the universe are mostly composed of which elements? A. hydrogen and helium
B. hydrogen and oxygen
C. oxygen and nitrogen
D. helium and nitrogen