The Distinctive Color of a Reflection Nebula Is

question 18

Multiple Choice

The distinctive color of a reflection nebula is

• A) light of all colors predominantly in the red part of the spectrum, emitted by cool stars and reflected by crystals of water ice surrounding the stars.
• B) several specific colors, resulting from fluorescence of atoms excited by ultraviolet radiation emitted by hot stars.
• C) blue, caused by the scattering of light from dust grains.
• D) red, resulting from the emission of light from hydrogen gas.

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