A solar eclipse that occurs when the Moon's umbra does not reach Earth's surface is called
a. a total solar eclipse.
b. a partial solar eclipse.
c. an annular solar eclipse.
d. a penumbral solar eclipse.
e. an umbral solar eclipse.
Question 2
The synodic period of the Moon is
a. about 27.32 days long.
b. the period of time for the Moon to orbit Earth once with respect to the stars.
c. the period of time between successive eclipses at a given location on Earth.
d. the period of time from when the Moon rises until the Moon rises again the next night.
e. None of the other choices are correct.
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