In general, a sundial is NOT a good timekeeper because the
A) Earth's orbital speed around the ecliptic is variable.
B) Earth's rotation rate changes throughout the year.
C) Sun's large angular diameter produces a fuzzy shadow.
D) sky is often cloudy.

Question

Quizplus · Accepted Answer

The Earth's orbital speed around the ecliptic is variable due to its elliptical orbit, affecting the apparent motion of the Sun and thus the accuracy of a sundial.

In General, a Sundial Is NOT a Good Timekeeper Because