Together, Earth's tilt and revolution cause the __________, over the course of a year, as seen by an observer in San Luis Obispo, CA.
A. hours between sunrise and sunset to vary.
B. celestial north pole to wander around relative to the stars.
C. circumpolar stars to orbit the celestial north pole.
D. stars to rise, move across the celestial sphere, and set.
Answer:A
Together, Earth's tilt and revolution cause the __________, over the course of a year, as seen by an observer in San Luis Obispo, CA.
A. hours between sunrise and sunset to vary. B. celestial north pole to wander around relative to the stars. C. circumpolar stars to orbit the celestial north pole. D. stars to rise, move across the celestial sphere, and set.