Why are Mercury and Venus never visible in the San Luis Obispo, CA sky at midnight?
A. Mercury and Venus never exhibit retrograde motion.
B. Mercury and Venus are too small to reflect enough sunlight.
C. The orbits of Mercury and Venus are smaller than the orbit of Earth.
D. Mercury and Venus cannot exhibit gibbous phases.
Answer:C
Why are Mercury and Venus never visible in the San Luis Obispo, CA sky at midnight?
A. Mercury and Venus never exhibit retrograde motion. B. Mercury and Venus are too small to reflect enough sunlight. C. The orbits of Mercury and Venus are smaller than the orbit of Earth. D. Mercury and Venus cannot exhibit gibbous phases.