The seasons change because of the earth's tilt as it rotates on its axis, and spring begins when the earth is tilted so that the sun is directly over the equator.
(The seasons; change; because of the earth's tilt; T:as it rotates on its axis) (it; rotates; on its axis) (spring; begins; T:when the earth is tilted so that the sun is directly over the equator) (the earth; is tilted; ) (the sun; is directly; over the equator)
The seasons it spring the earth the sun
change rotates begins is tilted is directly
because of the earth's tilt T:as it rotates on its axis
on its axis
T:when the earth is tilted so that the sun is directly over the equator
over the equator