tilt of the earth's axis affects the angle of incidence of solar radiation on the earth's surface and causes seasonal and latitudinal variations in day length.
(tilt of the earth's axis; affects; the angle of incidence of solar radiation on the earth's surface) (tilt of the earth's axis; causes; seasonal and latitudinal variations in day length)
tilt of the earth's axis tilt of the earth's axis
affects causes
the angle of incidence of solar radiation on the earth's surface
seasonal and latitudinal variations in day length