Which One of These Statements Is Correct About the Behavior

question 35

Multiple Choice

Which one of these statements is correct about the behavior of an observer's zenith (the vertical direction directly overhead) over a period of 1 year if the observer were standing on Earth's equator?

• A) The angle between the zenith and Earth's spin axis will vary between +23.5° and -23.5° over this period.
• B) The zenith will always be perpendicular to Earth's spin axis.
• C) The zenith will always remain at a fixed angle of 23.5° to the spin axis of Earth.
• D) The zenith will always be parallel to Earth's spin axis.

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Definitions:

Postural Hypotension

A condition where one's blood pressure significantly drops upon standing up from a lying or sitting position, often leading to dizziness or fainting.

Tricyclic Antidepressant

A class of medication used to treat depression by inhibiting the reuptake of norepinephrine and serotonin, thereby increasing their levels in the brain.

Major Depressive Disorder

A mood disorder presenting as persistent feelings of sadness and loss of interest, often accompanied by physical symptoms and causing significant impairment in daily life.

Psychomotor Retardation

A slowing down of thought and a reduction of physical movements in an individual, often observed in major depressive disorders.