From the horizon to the observer's zenith is an angle of
A) 90 degrees for everyone on the Earth.
B) 23.5 degrees for observers at the Tropics of Cancer and Capricorn.
C) 0.0 degrees for an observer at the Earth's north pole.
D) 66.5 degrees for everyone on the Earth.
E) 30 degrees for observers at a latitude of 30 degrees north.

Question

Quizplus · Accepted Answer

The angle from the horizon to the observer's zenith is always 90 degrees, regardless of the observer's location on Earth. This is because the zenith is defined as the point directly overhead, forming a right angle with the horizon.

From the Horizon to the Observer's Zenith Is an Angle