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Home Q & A Board Science-Related Homework Help Physics
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staedtler staedtler
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7 years ago
The early Universe appears to have contained only light elements, mostly hydrogen and helium, and yet, at the present time, there are significant amounts of heavier elements, those from which the Earth (and ourselves) are made. From where have these heavy elements come?

(a)   Nuclear fusion and element synthesis in the deep interiors of stars.
(b)   Repeated energetic collisions of light element nuclei (cosmic rays) in space which produced heavier elements by nuclear fusion.
(c)   Minor amounts of heavier elements, formed in the initial Big Bang at the formation of the Universe, became concentrated in certain parts of galaxies to form solar systems such as our own.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
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hyponoticahyponotica
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staedtler Author
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7 years ago
Grinning Face Exactly what I needed
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