The creation of ________ require(s) that a young hot star (T ≈ 25,000 K) be relatively nearby.
A)emission nebulae
B)HI regions
C)molecular clouds
D)the cool gas of the interstellar medium
E)21-cm radiation

Question

Quizplus · Accepted Answer

Emission nebulae are clouds of ionized gas that emit light at various wavelengths, including visible light. They are typically associated with young, hot stars that ionize the gas through their intense radiation. Therefore, the creation of emission nebulae requires the presence of a young, hot star nearby.

The Creation of ________ Require(s) That a Young Hot Star