why does the seasons change?

Question

it should stay fall all year long

Answer 1

The Earth's orbit is in the shape of an ellipse, so that sometimes the Earth is a little bit closer to the Sun than at other times. Is this the cause of the seasons?

You can imagine that if the seasons were caused by the Earth's orbit, people in the northern hemisphere and people in the southern hemisphere would have the same seasons. For example, if winter occured because the Earth was far away from the Sun, everyplace on the Earth would be cold at the same time.

But this is not what happens! Summer in the northern hemisphere occurs at the same time as winter in the south, and vice-versa. It turns out that the Earth's orbit is nearly perfectly circular, and the difference between its closest point and its furthest point is very small. In fact, the Earth is furthest away from the Sun in June when it is summer in the northern hemisphere.

The Earth is a very special planet in many ways. Just as Earth's unique atmosphere and its distance from the Sun work together to make Earth the right temperature to support life, Earth's orbit and its rotation work together to create the seasons.

Answer 2

If you want a serious answer, it's because of the Earth's natural wobble. The Earth tilts on it's axis toward and away from the sun. During the summer in the northern hemisphere, the Earth tilts toward the sun at the Tropic of Cancer, and during the fall, the Earth tilts back toward the equator, then during the winter it tilts away from the sun at the Tropic of Cancer. In the spring, it goes back to the equator and toward the Tropic of Cancer again in the summer.

ocnbrz: Posting an answer that was written by somebody else on another website without citing them a source is called plagiarism.
http://www.windows.ucar.edu/tour/link=/the_universe/uts/seasons1.html

Answer 3

Because of the tilt of the earth, and the angle of the sun hitting the earth.

Answer 4

Because of the sun and Earth's revolution and rotation

Answer 5

Because of the sun.