Which of the following are small dark nebulae about 1 light year in diameter,with masses from 10 to 1,000 solar masses?
A)HII regions
B)emission nebulae
C)Bok globules
D)reflection nebulae

Question

Quizplus · Accepted Answer

Bok globules are small dark nebulae that can form stars and are typically about 1 light year in diameter with masses ranging from 10 to 1,000 solar masses. HII regions and emission nebulae are regions of ionized gas and do not refer to dark nebulae. Reflection nebulae are clouds of dust and gas that reflect the light of neighboring stars and are not necessarily small or dark.

Which of the Following Are Small Dark Nebulae About 1