Multiple Choice
One similarity in the spectra of T dwarf stars and giant planets in our solar system is that their spectra show:
A) lots of free oxygen
B) lines of ionized magnesium and iron
C) indications of methane
D) nothing that shows that hydrogen was ever present in them
E) temperatures at which human beings could survive unprotected
Correct Answer:
Verified
Correct Answer:
Verified
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