When Limestone Becomes Chemically Altered So That Half of the Calcium

question 26

Multiple Choice

When limestone becomes chemically altered so that half of the calcium atoms are replaced by magnesium,the resultant rock is termed

• A) agate.
• B) dolostone.
• C) jasper.
• D) travertine.

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Definitions:

Erroneous Mark

A mark or notation that is made by mistake or is incorrect.

Precordial Electrode

Precordial electrodes are used in electrocardiography (EKG/ECG), placed on the chest area to record heart’s electrical activity from different angles.

Intercostal Space

The physical space between two ribs, which contains muscles, nerves, arteries, and veins.

Middle of the Armpit

The central region within the armpit area, anatomically known as the axilla.