Complex molecules in the interstellar medium are found
A) only around the supergiant stars like Betelgeuse that make their heavy atoms.
B) uniformly throughout the disk of the Galaxy.
C) primarily in the dense dust clouds.
D) scattered evenly throughout the universe, a product of the Big Bang itself.
E) on the surfaces of the coolest class K and M stars only.
C
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FIG 3-23
Jominy end-quench test
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