scientists discovered that stars in the universe are mostly composed of which elements?\no hydrogen and…

scientists discovered that stars in the universe are mostly composed of which elements?\no hydrogen and helium\no hydrogen and oxygen\no oxygen and nitrogen\no helium and nitrogen
Answer
Brief Explanations:
Stars are mainly made of hydrogen and helium. Through nuclear - fusion reactions in their cores, hydrogen fuses into helium, powering the stars. Other elements are present in much smaller amounts.
Answer:
hydrogen and helium