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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Definitions:

Enhancement

Refers to the improvement or intensification of qualities, performance, or characteristics, often through the use of technological, chemical, or psychological means.

Correlation

A numerical indicator showing how much two or more variables move in relation to each other.

Validity

The degree to which an idea, finding, or measure is grounded in reality and reflects the true state of affairs accurately.

Reliability

The degree to which an assessment tool produces stable and consistent results over time.