Multiple Choice
What causes reflection nebulae to appear blue while emission nebulae appear pink?
A) Reflection nebulae contain less hydrogen than emission nebulae.
B) Reflection nebulae are hotter than emission nebulae.
C) Reflection nebulae are less ionized than emission nebulae.
D) Long wavelengths of light are preferentially scattered by small dust grains.
Correct Answer:
Verified
Correct Answer:
Verified
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