Standard Time Zones

question 113

Multiple Choice

Standard time zones

• A)have yet to be generally established.
• B)are 15° wide because Earth rotates through that distance in one hour.
• C)are only used in the developed countries.
• D)are spaced at 5° intervals of longitude in North America.
• E)are spaced at 15° intervals of latitude.

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Definitions:

Dysrhythmia

An abnormal heart rhythm.

Potassium Ions

Positively charged atoms of potassium that play crucial roles in cellular and electrical functions within the body.

Calcium Ions

Positively charged atoms of calcium that play crucial roles in various biological processes, including muscle contraction, nerve function, and blood clotting.

Teeth Blood Supply

The vascular system that provides nutrients and oxygen through the arteries and veins to maintain the health of teeth and support their function.