Total solar eclipses may occur only at the time of ______ A. moon's phase in 1st or 3rd quarter B. full moon C. either equinox (Vernal or Autumnal) D. new moon* 13.
(Total solar eclipses; may occur; T:only at the time of ______ A. moon's phase in 1st or 3rd quarter)
Total solar eclipses
may occur
T:only at the time of ______ A. moon's phase in 1st or 3rd quarter