The Spectrum of a Star Shows an Equivalent Set of Dark

question 56

Multiple Choice

The spectrum of a star shows an equivalent set of dark absorption lines to those of the Sun,with one exception: Every line appears at a slightly longer wavelength,shifted toward the red end of the spectrum.What conclusion can be drawn from this observation?

• A) The star is moving rapidly toward Earth.
• B) A cloud of dust surrounds the star and absorbs the light.
• C) The star is moving rapidly away from Earth.
• D) The temperature of the star's surface is higher than that of the Sun.

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Definitions:

Maintaining Flexibility

The act of regularly engaging in activities that preserve or enhance the range of motion and elasticity of the muscles and tendons.

Joints

The points at which two bones connect in the body, allowing for movement and flexibility.

Ill-Fitting Clothing

Clothing that does not fit properly on the body, often leading to discomfort or style issues.

Poor Posture

An alignment of the body that is not optimal, often leading to discomfort, pain, and potentially long-term musculoskeletal issues.