Most of these are caused by the changing pulls of the Earth and Sun during the Moon&#146;s orbit, or by the Sun heating the surface.
(Most of these; are caused; by the changing pulls of the Earth and Sun during the Moon&#146;s orbit, or by the Sun heating the surface)
Most of these
are caused
by the changing pulls of the Earth and Sun during the Moon&#146;s orbit, or by the Sun heating the surface