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:

Presbyopia

A form of age-related vision impairment characterized by difficulty in focusing on close objects, necessitating reading glasses or bifocals.

Iritis

is inflammation of the iris, the colored part of the eye, which can cause pain, light sensitivity, decreased vision, and redness of the eye, and requires prompt treatment to prevent serious complications.

Astigmatism

A common vision condition that causes blurred vision due to an irregularly shaped cornea or lens within the eye.