What Is a Plage

question 247

Multiple Choice

What is a plage?

• A) sudden eruption on the photosphere in the vicinity of a sunspot group
• B) region in the corona that looks bright against the darkness of space but dark against the brighter photosphere
• C) bright area in the chromosphere
• D) bright area on the photosphere

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Definitions:

K

The chemical symbol for potassium, a soft silvery-white alkaline metal that is essential for many biological processes and is used in numerous industrial applications.

[H+]

The concentration of hydrogen ions in a solution, often used to express the acidity of a solution.

HAc

The chemical formula notation for acetic acid, a colorless liquid organic compound known for its sour taste and pungent smell, represented by CH3COOH.

K

K is the chemical symbol for Potassium, a soft, silvery-white metallic element in the alkali metal group with atomic number 19.