Chemical enrichment refers to the process by which heavier elements are produced and distributed in the universe, primarily through stellar nucleosynthesis and supernova explosions. This process plays a critical role in the evolution of galaxies, as it influences the composition of gas clouds from which new stars and planets form. The cycle of star formation and death leads to a gradual increase in the abundance of elements heavier than hydrogen and helium in the interstellar medium, affecting future generations of stars and the overall chemical evolution of the cosmos.
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