Answer :
The explosions (supernovae) of first-generation stars creates heavier elements like copper and zinc.
What were first-generation stars?
First-generation stars were stars that were formed shortly after the Big Bang. They consisted of primarily hydrogen and helium. Second-generation stars like the Sun contain some heavier elements. The elements couldn't exist just based on nuclear fusion inside stars. Instead, some of the elements must have come from the supernovae of first-generation stars.
The only way heavier elements like oxygen, carbon, and iron can form is by fusion of lighter elements in the cores of stars. Therefore, until the first stars began to form heavier elements, none of those elements existed in the universe.
Learn more about first-generation stars here: https://brainly.com/question/5616342
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