2007-05-14 14:42:33 · 4 answers · asked by Carla F 1 in Science & Mathematics ➔ Earth Sciences & Geology
A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.
2007-05-14 14:46:45 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Why is anything the colour it is?
If you look at a blue dress, the dress material is absorbing most of the other colours (from the sun or artificial light) and reflecting blue back to your eyes.
In the case of the atmosphere, most of the sunlight gets through including most of the blue component, making the atmosphere mostly clear. However, some of the particles in the atmosphere capture light and reflect the blue component to your eyes.
2007-05-14 14:58:18 · answer #2 · answered by nick s 6 · 0⤊ 0⤋
Dust particles in the atmosphere bend the light so that the wavelength frequency is blue.
At dusk, the light is bent even more, and it becomes red.
2007-05-14 14:45:53 · answer #3 · answered by reb1240 7 · 0⤊ 0⤋
It's a reflection of the water on the earth's surface.
2007-05-14 14:50:25 · answer #4 · answered by teeleecee 6 · 0⤊ 1⤋