A Visible Light Spectrum of the Sun Reveals Many Dark

question 43

Multiple Choice

A visible light spectrum of the Sun reveals many dark absorption lines.These lines are caused by photon absorption,which takes place in the:

• A) corona.
• B) photosphere.
• C) sunspot groups.
• D) solar interior.

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Definitions:

Sphygmomanometer

A sphygmomanometer is a device used to measure blood pressure, typically involving a cuff that is placed around the arm.

Electrocardiograph

A medical device used to record the electrical activity of the heart over a period of time.

Ischemia

A condition of reduced blood flow to tissues, causing a shortage of oxygen that is needed for cellular metabolism.

-emia

A suffix used in medical terminology to denote a condition of the blood; for example, anemia (a lack of red blood cells).