Multiple Choice
The presence of forbidden lines in the spectra of emission nebula indicates that the
A) nebula has a very high temperature.
B) nebula contains large amounts of hydrogen.
C) gas in the nebula has a very low density.
D) dust in the nebula is composed of very small grains of silicates and carbon.
E) nebula is very near a star whose temperature is less than that of the sun.
Correct Answer:
Verified
Correct Answer:
Verified
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