What causes the cycle of seasons on Earth?
Correct answer: Earths' tilt toward the sun
Aroganz
how is this not common knowledge??? SAD!
Theving
The earth doesn't tilt towards the sun. It is tilted on its axis.
bribiepete
cv, yes the angle at which sunlight hits the earth's surface is the key to this answer, and the earth's tilt towards the sun effects that angle.