What Direct Evidence Do Astronomers Have That Supports the Heavy

question 47

Multiple Choice

What direct evidence do astronomers have that supports the heavy element formation instars?

• A)the presence of technetium in giant star spectra
• B)observed elemental abundances
• C)gamma-ray emissions from decay of cobalt 56 in supernovae
• D)light curves of type-I supernovae
• E)All of the above are evidence of this.

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