Earth's __________ causes the stars to move across the celestial sphere over several hours, as seen by an observer in San Luis Obispo, CA.
A. rotation.
B. revolution.
C. precession.
D. tilt.
Answer:A
Earth's __________ causes the stars to move across the celestial sphere over several hours, as seen by an observer in San Luis Obispo, CA.
A. rotation. B. revolution. C. precession. D. tilt.