The rotation of the Earth causes the phenomenon that is important is the occurrence of night and day. When the world revolves around yourself at the side facing the Sun will cause the day facing the Sun will be back at night. While the world revolves around yourself from the West to the East. Will allow us to see the sun rising from the horizon to the East and West via the West side skyline, always at the Equator at mid day and night are equal. Is 12 hours, and due to the inclination of the Earth axis, making the areas? There is a period of time in the Sun. Time during the day and night, such as the northern hemisphere summer lunch period is long, and in the area of the North Pole and the South Pole will have a 24-hour day and night occurs, dusk and dawn is a phenomenon caused by molecules or macro sectors in.Kat, such as dust, humidity, Reflections of the Sun back to the surface of the Earth, which will occur before the sun rises and the sun goes down, we'll see a red light because the light comes from the Sun is in the slant slopes. Like the daytime scene has not been set. Blue and yellow are the refractive but red light is refracted the least. It makes us see the sky is red during the period.
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