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Home Q & A Board Science-Related Homework Help Physics Astronomy
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adreamer adreamer
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6 years ago
The main chemical building blocks of life, carbon, nitrogen, oxygen, and iron were formed
A) inside interstellar gas clouds during star formation
B) in the center of the Earth and then ejected onto the surface via volcanism
C) in the nuclear burning cores of stars and then ejected into space when they died
D) in the Big Bang that created the universe
Textbook 
Life in the Universe

Life in the Universe


Edition: 4th
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19Clyde19Clyde
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6 years ago
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adreamer Author
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6 years ago
Good timing, thanks!
jcarter
wrote...

Yesterday
Thanks for your help!!
annabananerz
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2 hours ago
Thanks
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