Why do some parts of the Earth experience 12 hours of darkness or 12 hours of light?

Answer 1

The axis of the earth (on Which the earth spins) is not straight up and down. So depending on your latitude, (how far from the poles you live) effects how steady your amount of light is. At the equator the light should be closest to12 hrs light/ 12 hours darkness. In Alaska however, the north pole is leaned toward the sun in summer. Giving it longer hours of light, which peak on summer solstice, with 24 hours of light. In winter, the north pole leans away from the sun, so that winter solstice provides 24 hours of darkness. I hope this helps answer your Question.

Answer 2

The earth tilts on its axis. During the winter season, your part of the planet tilts away from the sun a bit more than in the summer. The equator always faces the sun at about the same degree, so it always experiences about 12 hours of light a day. The two poles can experience close to 24 hours of light or darkness at the extremes of equinox. (We're almost at one now! It has been dark in NYC since about 4:30pm!)

Answer 3

I know in Alaska it sometimes doesnt get any darkness at all durning the seasons. I dont know what it is called but think of the earth being close to the sun. You have mercury and venus. Sometimes one or two planets block out the sun for a whole season. As the earth rotates around the sun.

Answer 4

It's due to the angle and rotation of the earth on it's axis.